diff --git a/native/account/fullscreen-siwe-panel.react.js b/native/account/fullscreen-siwe-panel.react.js
index b59387cc5..bf4f09702 100644
--- a/native/account/fullscreen-siwe-panel.react.js
+++ b/native/account/fullscreen-siwe-panel.react.js
@@ -1,169 +1,202 @@
 // @flow
 
 import { useNavigation } from '@react-navigation/native';
 import invariant from 'invariant';
 import * as React from 'react';
 import { ActivityIndicator, View } from 'react-native';
 
 import { setDataLoadedActionType } from 'lib/actions/client-db-store-actions.js';
 import { useWalletLogIn } from 'lib/hooks/login-hooks.js';
 import { type SIWEResult, SIWEMessageTypes } from 'lib/types/siwe-types.js';
-import { ServerError } from 'lib/utils/errors.js';
+import { ServerError, getMessageForException } from 'lib/utils/errors.js';
 import { useDispatch } from 'lib/utils/redux-utils.js';
 import { usingCommServicesAccessToken } from 'lib/utils/services-utils.js';
 
 import { useGetEthereumAccountFromSIWEResult } from './registration/ethereum-utils.js';
 import { RegistrationContext } from './registration/registration-context.js';
 import { enableNewRegistrationMode } from './registration/registration-types.js';
 import { useLegacySIWEServerCall } from './siwe-hooks.js';
 import SIWEPanel from './siwe-panel.react.js';
 import { commRustModule } from '../native-modules.js';
 import {
   AccountDoesNotExistRouteName,
   RegistrationRouteName,
 } from '../navigation/route-names.js';
 import { UnknownErrorAlertDetails } from '../utils/alert-messages.js';
 import Alert from '../utils/alert.js';
 
 type Props = {
   +goBackToPrompt: () => mixed,
   +closing: boolean,
 };
 function FullscreenSIWEPanel(props: Props): React.Node {
   const [loading, setLoading] = React.useState(true);
 
   const activity = loading ? <ActivityIndicator size="large" /> : null;
 
   const activityContainer = React.useMemo(
     () => ({
       flex: 1,
     }),
     [],
   );
 
   const registrationContext = React.useContext(RegistrationContext);
   invariant(registrationContext, 'registrationContext should be set');
   const { setSkipEthereumLoginOnce, register: registrationServerCall } =
     registrationContext;
 
   const getEthereumAccountFromSIWEResult =
     useGetEthereumAccountFromSIWEResult();
   const { navigate } = useNavigation();
   const { goBackToPrompt } = props;
   const onAccountDoesNotExist = React.useCallback(
     async (result: SIWEResult) => {
       await getEthereumAccountFromSIWEResult(result);
       setSkipEthereumLoginOnce(true);
       goBackToPrompt();
       navigate<'Registration'>(RegistrationRouteName, {
         screen: AccountDoesNotExistRouteName,
       });
     },
     [
       getEthereumAccountFromSIWEResult,
       navigate,
       goBackToPrompt,
       setSkipEthereumLoginOnce,
     ],
   );
 
+  const onNonceExpired = React.useCallback(
+    (registrationOrLogin: 'registration' | 'login') => {
+      Alert.alert(
+        registrationOrLogin === 'registration'
+          ? 'Registration attempt timed out'
+          : 'Login attempt timed out',
+        'Please try again',
+        [{ text: 'OK', onPress: goBackToPrompt }],
+        { cancelable: false },
+      );
+    },
+    [goBackToPrompt],
+  );
+
   const legacySiweServerCall = useLegacySIWEServerCall();
   const walletLogIn = useWalletLogIn();
   const successRef = React.useRef(false);
   const dispatch = useDispatch();
   const onSuccess = React.useCallback(
     async (result: SIWEResult) => {
       successRef.current = true;
       if (usingCommServicesAccessToken) {
         try {
           const findUserIDResponseString =
             await commRustModule.findUserIDForWalletAddress(result.address);
           const findUserIDResponse = JSON.parse(findUserIDResponseString);
           if (findUserIDResponse.userID || findUserIDResponse.isReserved) {
-            await walletLogIn(result.address, result.message, result.signature);
+            try {
+              await walletLogIn(
+                result.address,
+                result.message,
+                result.signature,
+              );
+            } catch (e) {
+              const messageForException = getMessageForException(e);
+              if (messageForException === 'nonce expired') {
+                onNonceExpired('login');
+              } else {
+                throw e;
+              }
+            }
           } else if (enableNewRegistrationMode) {
             await onAccountDoesNotExist(result);
           } else {
-            await registrationServerCall({
-              farcasterID: null,
-              accountSelection: {
-                accountType: 'ethereum',
-                ...result,
-                avatarURI: null,
-              },
-              avatarData: null,
-              clearCachedSelections: () => {},
-            });
+            try {
+              await registrationServerCall({
+                farcasterID: null,
+                accountSelection: {
+                  accountType: 'ethereum',
+                  ...result,
+                  avatarURI: null,
+                },
+                avatarData: null,
+                clearCachedSelections: () => {},
+                onNonceExpired: () => onNonceExpired('registration'),
+              });
+            } catch {
+              // We swallow exceptions here because registrationServerCall
+              // already handles showing Alerts, and we don't want to show two
+            }
           }
         } catch (e) {
           Alert.alert(
             UnknownErrorAlertDetails.title,
             UnknownErrorAlertDetails.message,
             [{ text: 'OK', onPress: goBackToPrompt }],
             { cancelable: false },
           );
-          throw e;
         }
       } else {
         try {
           await legacySiweServerCall({
             ...result,
             doNotRegister: enableNewRegistrationMode,
           });
         } catch (e) {
           if (
             e instanceof ServerError &&
             e.message === 'account_does_not_exist'
           ) {
             await onAccountDoesNotExist(result);
             return;
           }
           Alert.alert(
             UnknownErrorAlertDetails.title,
             UnknownErrorAlertDetails.message,
             [{ text: 'OK', onPress: goBackToPrompt }],
             { cancelable: false },
           );
-          throw e;
+          return;
         }
         dispatch({
           type: setDataLoadedActionType,
           payload: {
             dataLoaded: true,
           },
         });
       }
     },
     [
       walletLogIn,
       registrationServerCall,
       goBackToPrompt,
       dispatch,
       legacySiweServerCall,
       onAccountDoesNotExist,
+      onNonceExpired,
     ],
   );
 
   const ifBeforeSuccessGoBackToPrompt = React.useCallback(() => {
     if (!successRef.current) {
       goBackToPrompt();
     }
   }, [goBackToPrompt]);
 
   const { closing } = props;
   return (
     <>
       <View style={activityContainer}>{activity}</View>
       <SIWEPanel
         closing={closing}
         onClosed={ifBeforeSuccessGoBackToPrompt}
         onClosing={ifBeforeSuccessGoBackToPrompt}
         onSuccessfulWalletSignature={onSuccess}
         siweMessageType={SIWEMessageTypes.MSG_AUTH}
         setLoading={setLoading}
       />
     </>
   );
 }
 
 export default FullscreenSIWEPanel;
diff --git a/native/account/registration/registration-server-call.js b/native/account/registration/registration-server-call.js
index caf4c85f5..e9b574052 100644
--- a/native/account/registration/registration-server-call.js
+++ b/native/account/registration/registration-server-call.js
@@ -1,476 +1,483 @@
 // @flow
 
 import * as React from 'react';
 
 import { setDataLoadedActionType } from 'lib/actions/client-db-store-actions.js';
 import { setSyncedMetadataEntryActionType } from 'lib/actions/synced-metadata-actions.js';
 import {
   legacyKeyserverRegisterActionTypes,
   legacyKeyserverRegister,
   useIdentityPasswordRegister,
   identityRegisterActionTypes,
   deleteAccountActionTypes,
   useDeleteDiscardedIdentityAccount,
 } from 'lib/actions/user-actions.js';
 import { useKeyserverAuthWithRetry } from 'lib/keyserver-conn/keyserver-auth.js';
 import { useLegacyAshoatKeyserverCall } from 'lib/keyserver-conn/legacy-keyserver-call.js';
 import { isLoggedInToKeyserver } from 'lib/selectors/user-selectors.js';
 import {
   type LegacyLogInStartingPayload,
   logInActionSources,
 } from 'lib/types/account-types.js';
 import { syncedMetadataNames } from 'lib/types/synced-metadata-types.js';
+import { getMessageForException } from 'lib/utils/errors.js';
 import { useDispatchActionPromise } from 'lib/utils/redux-promise-utils.js';
 import { useDispatch } from 'lib/utils/redux-utils.js';
 import { usingCommServicesAccessToken } from 'lib/utils/services-utils.js';
 import { setURLPrefix } from 'lib/utils/url-utils.js';
 import { waitUntilDatabaseDeleted } from 'lib/utils/wait-until-db-deleted.js';
 
 import type {
   RegistrationServerCallInput,
   UsernameAccountSelection,
   AvatarData,
 } from './registration-types.js';
 import { authoritativeKeyserverID } from '../../authoritative-keyserver.js';
 import {
   useNativeSetUserAvatar,
   useUploadSelectedMedia,
 } from '../../avatars/avatar-hooks.js';
 import { commCoreModule } from '../../native-modules.js';
 import { useSelector } from '../../redux/redux-utils.js';
 import { nativeLegacyLogInExtraInfoSelector } from '../../selectors/account-selectors.js';
 import {
   AppOutOfDateAlertDetails,
   UsernameReservedAlertDetails,
   UsernameTakenAlertDetails,
   UnknownErrorAlertDetails,
 } from '../../utils/alert-messages.js';
 import Alert from '../../utils/alert.js';
 import { defaultURLPrefix } from '../../utils/url-utils.js';
 import { setNativeCredentials } from '../native-credentials.js';
 import {
   useLegacySIWEServerCall,
   useIdentityWalletRegisterCall,
 } from '../siwe-hooks.js';
 
 // We can't just do everything in one async callback, since the server calls
 // would get bound to Redux state from before the registration. The registration
 // flow has multiple steps where critical Redux state is changed, where
 // subsequent steps depend on accessing the updated Redux state.
 
 // To address this, we break the registration process up into multiple steps.
 // When each step completes we update the currentStep state, and we have Redux
 // selectors that trigger useEffects for subsequent steps when relevant data
 // starts to appear in Redux.
 
 type CurrentStep =
   | { +step: 'inactive' }
   | {
       +step: 'identity_registration_dispatched',
       +clearCachedSelections: () => void,
       +avatarData: ?AvatarData,
       +credentialsToSave: ?{ +username: string, +password: string },
       +resolve: () => void,
       +reject: Error => void,
     }
   | {
       +step: 'authoritative_keyserver_registration_dispatched',
       +clearCachedSelections: () => void,
       +avatarData: ?AvatarData,
       +credentialsToSave: ?{ +username: string, +password: string },
       +resolve: () => void,
       +reject: Error => void,
     };
 
 const inactiveStep = { step: 'inactive' };
 
 function useRegistrationServerCall(): RegistrationServerCallInput => Promise<void> {
   const [currentStep, setCurrentStep] =
     React.useState<CurrentStep>(inactiveStep);
 
   // STEP 1: ACCOUNT REGISTRATION
 
   const legacyLogInExtraInfo = useSelector(nativeLegacyLogInExtraInfoSelector);
 
   const dispatchActionPromise = useDispatchActionPromise();
   const callLegacyKeyserverRegister = useLegacyAshoatKeyserverCall(
     legacyKeyserverRegister,
   );
   const callIdentityPasswordRegister = useIdentityPasswordRegister();
 
   const identityRegisterUsernameAccount = React.useCallback(
     async (
       accountSelection: UsernameAccountSelection,
       farcasterID: ?string,
     ) => {
       const identityRegisterPromise = (async () => {
         try {
           return await callIdentityPasswordRegister(
             accountSelection.username,
             accountSelection.password,
             farcasterID,
           );
         } catch (e) {
           if (e.message === 'username reserved') {
             Alert.alert(
               UsernameReservedAlertDetails.title,
               UsernameReservedAlertDetails.message,
             );
           } else if (e.message === 'username already exists') {
             Alert.alert(
               UsernameTakenAlertDetails.title,
               UsernameTakenAlertDetails.message,
             );
           } else if (e.message === 'Unsupported version') {
             Alert.alert(
               AppOutOfDateAlertDetails.title,
               AppOutOfDateAlertDetails.message,
             );
           } else {
             Alert.alert(
               UnknownErrorAlertDetails.title,
               UnknownErrorAlertDetails.message,
             );
           }
           throw e;
         }
       })();
       void dispatchActionPromise(
         identityRegisterActionTypes,
         identityRegisterPromise,
       );
       await identityRegisterPromise;
     },
     [callIdentityPasswordRegister, dispatchActionPromise],
   );
 
   const legacyKeyserverRegisterUsernameAccount = React.useCallback(
     async (
       accountSelection: UsernameAccountSelection,
       keyserverURL: string,
     ) => {
       const extraInfo = await legacyLogInExtraInfo();
       const legacyKeyserverRegisterPromise = (async () => {
         try {
           return await callLegacyKeyserverRegister(
             {
               ...extraInfo,
               username: accountSelection.username,
               password: accountSelection.password,
             },
             {
               urlPrefixOverride: keyserverURL,
             },
           );
         } catch (e) {
           if (e.message === 'username_reserved') {
             Alert.alert(
               UsernameReservedAlertDetails.title,
               UsernameReservedAlertDetails.message,
             );
           } else if (e.message === 'username_taken') {
             Alert.alert(
               UsernameTakenAlertDetails.title,
               UsernameTakenAlertDetails.message,
             );
           } else if (e.message === 'client_version_unsupported') {
             Alert.alert(
               AppOutOfDateAlertDetails.title,
               AppOutOfDateAlertDetails.message,
             );
           } else {
             Alert.alert(
               UnknownErrorAlertDetails.title,
               UnknownErrorAlertDetails.message,
             );
           }
           throw e;
         }
       })();
       void dispatchActionPromise(
         legacyKeyserverRegisterActionTypes,
         legacyKeyserverRegisterPromise,
         undefined,
         ({
           calendarQuery: extraInfo.calendarQuery,
         }: LegacyLogInStartingPayload),
       );
       await legacyKeyserverRegisterPromise;
     },
     [legacyLogInExtraInfo, callLegacyKeyserverRegister, dispatchActionPromise],
   );
 
   const legacySiweServerCall = useLegacySIWEServerCall();
   const identityWalletRegisterCall = useIdentityWalletRegisterCall();
   const dispatch = useDispatch();
   const returnedFunc = React.useCallback(
     (input: RegistrationServerCallInput) =>
       new Promise<void>(
         // eslint-disable-next-line no-async-promise-executor
         async (resolve, reject) => {
           try {
             if (currentStep.step !== 'inactive') {
               return;
             }
             const {
               accountSelection,
               avatarData,
               keyserverURL: passedKeyserverURL,
               farcasterID,
               siweBackupSecrets,
               clearCachedSelections,
+              onNonceExpired,
             } = input;
             const keyserverURL = passedKeyserverURL ?? defaultURLPrefix;
             if (
               accountSelection.accountType === 'username' &&
               !usingCommServicesAccessToken
             ) {
               await legacyKeyserverRegisterUsernameAccount(
                 accountSelection,
                 keyserverURL,
               );
             } else if (accountSelection.accountType === 'username') {
               await identityRegisterUsernameAccount(
                 accountSelection,
                 farcasterID,
               );
             } else if (!usingCommServicesAccessToken) {
               try {
                 await legacySiweServerCall(accountSelection, {
                   urlPrefixOverride: keyserverURL,
                 });
               } catch (e) {
                 Alert.alert(
                   UnknownErrorAlertDetails.title,
                   UnknownErrorAlertDetails.message,
                 );
                 throw e;
               }
             } else {
               try {
                 await identityWalletRegisterCall({
                   address: accountSelection.address,
                   message: accountSelection.message,
                   signature: accountSelection.signature,
                   fid: farcasterID,
                 });
               } catch (e) {
-                Alert.alert(
-                  UnknownErrorAlertDetails.title,
-                  UnknownErrorAlertDetails.message,
-                );
+                const messageForException = getMessageForException(e);
+                if (messageForException === 'nonce expired') {
+                  onNonceExpired();
+                } else {
+                  Alert.alert(
+                    UnknownErrorAlertDetails.title,
+                    UnknownErrorAlertDetails.message,
+                  );
+                }
                 throw e;
               }
             }
             if (passedKeyserverURL) {
               dispatch({
                 type: setURLPrefix,
                 payload: passedKeyserverURL,
               });
             }
             if (farcasterID) {
               dispatch({
                 type: setSyncedMetadataEntryActionType,
                 payload: {
                   name: syncedMetadataNames.CURRENT_USER_FID,
                   data: farcasterID,
                 },
               });
             }
             if (siweBackupSecrets) {
               await commCoreModule.setSIWEBackupSecrets(siweBackupSecrets);
             }
             const credentialsToSave =
               accountSelection.accountType === 'username'
                 ? {
                     username: accountSelection.username,
                     password: accountSelection.password,
                   }
                 : null;
             if (usingCommServicesAccessToken) {
               setCurrentStep({
                 step: 'identity_registration_dispatched',
                 avatarData,
                 clearCachedSelections,
                 credentialsToSave,
                 resolve,
                 reject,
               });
             } else {
               setCurrentStep({
                 step: 'authoritative_keyserver_registration_dispatched',
                 avatarData,
                 clearCachedSelections,
                 credentialsToSave,
                 resolve,
                 reject,
               });
             }
           } catch (e) {
             reject(e);
           }
         },
       ),
     [
       currentStep,
       legacyKeyserverRegisterUsernameAccount,
       identityRegisterUsernameAccount,
       legacySiweServerCall,
       dispatch,
       identityWalletRegisterCall,
     ],
   );
 
   // STEP 2: REGISTERING ON AUTHORITATIVE KEYSERVER
 
   const keyserverAuth = useKeyserverAuthWithRetry(authoritativeKeyserverID);
 
   const isRegisteredOnIdentity = useSelector(
     state =>
       !!state.commServicesAccessToken &&
       !!state.currentUserInfo &&
       !state.currentUserInfo.anonymous,
   );
 
   // We call deleteDiscardedIdentityAccount in order to reset state if identity
   // registration succeeds but authoritative keyserver auth fails
   const deleteDiscardedIdentityAccount = useDeleteDiscardedIdentityAccount();
 
   const registeringOnAuthoritativeKeyserverRef = React.useRef(false);
   React.useEffect(() => {
     if (
       !isRegisteredOnIdentity ||
       currentStep.step !== 'identity_registration_dispatched' ||
       registeringOnAuthoritativeKeyserverRef.current
     ) {
       return;
     }
     registeringOnAuthoritativeKeyserverRef.current = true;
     const {
       avatarData,
       clearCachedSelections,
       credentialsToSave,
       resolve,
       reject,
     } = currentStep;
     void (async () => {
       try {
         await keyserverAuth({
           authActionSource: process.env.BROWSER
             ? logInActionSources.keyserverAuthFromWeb
             : logInActionSources.keyserverAuthFromNative,
           setInProgress: () => {},
           hasBeenCancelled: () => false,
           doNotRegister: false,
         });
         setCurrentStep({
           step: 'authoritative_keyserver_registration_dispatched',
           avatarData,
           clearCachedSelections,
           credentialsToSave,
           resolve,
           reject,
         });
       } catch (keyserverAuthException) {
         const discardIdentityAccountPromise = (async () => {
           try {
             const deletionResult = await deleteDiscardedIdentityAccount();
             Alert.alert(
               UnknownErrorAlertDetails.title,
               UnknownErrorAlertDetails.message,
             );
             return deletionResult;
           } catch (deleteException) {
             Alert.alert(
               'Account created but login failed',
               'We were able to create your account, but were unable to log ' +
                 'you in. Try going back to the login screen and logging in ' +
                 'with your new credentials.',
             );
             throw deleteException;
           }
         })();
         void dispatchActionPromise(
           deleteAccountActionTypes,
           discardIdentityAccountPromise,
         );
         await waitUntilDatabaseDeleted();
         reject(keyserverAuthException);
         setCurrentStep(inactiveStep);
       } finally {
         registeringOnAuthoritativeKeyserverRef.current = false;
       }
     })();
   }, [
     currentStep,
     isRegisteredOnIdentity,
     keyserverAuth,
     dispatchActionPromise,
     deleteDiscardedIdentityAccount,
   ]);
 
   // STEP 3: SETTING AVATAR
 
   const uploadSelectedMedia = useUploadSelectedMedia();
   const nativeSetUserAvatar = useNativeSetUserAvatar();
 
   const isLoggedInToAuthoritativeKeyserver = useSelector(
     isLoggedInToKeyserver(authoritativeKeyserverID),
   );
 
   const avatarBeingSetRef = React.useRef(false);
   React.useEffect(() => {
     if (
       !isLoggedInToAuthoritativeKeyserver ||
       currentStep.step !== 'authoritative_keyserver_registration_dispatched' ||
       avatarBeingSetRef.current
     ) {
       return;
     }
     avatarBeingSetRef.current = true;
     const { avatarData, resolve, clearCachedSelections, credentialsToSave } =
       currentStep;
     void (async () => {
       try {
         if (!avatarData) {
           return;
         }
         let updateUserAvatarRequest;
         if (!avatarData.needsUpload) {
           ({ updateUserAvatarRequest } = avatarData);
         } else {
           const { mediaSelection } = avatarData;
           updateUserAvatarRequest = await uploadSelectedMedia(mediaSelection);
           if (!updateUserAvatarRequest) {
             return;
           }
         }
         await nativeSetUserAvatar(updateUserAvatarRequest);
       } finally {
         dispatch({
           type: setDataLoadedActionType,
           payload: {
             dataLoaded: true,
           },
         });
         clearCachedSelections();
         if (credentialsToSave) {
           void setNativeCredentials(credentialsToSave);
         }
         setCurrentStep(inactiveStep);
         avatarBeingSetRef.current = false;
         resolve();
       }
     })();
   }, [
     currentStep,
     isLoggedInToAuthoritativeKeyserver,
     uploadSelectedMedia,
     nativeSetUserAvatar,
     dispatch,
   ]);
 
   return returnedFunc;
 }
 
 export { useRegistrationServerCall };
diff --git a/native/account/registration/registration-terms.react.js b/native/account/registration/registration-terms.react.js
index 5d0a51f86..0caf77d15 100644
--- a/native/account/registration/registration-terms.react.js
+++ b/native/account/registration/registration-terms.react.js
@@ -1,162 +1,198 @@
 // @flow
 
+import type {
+  StackNavigationEventMap,
+  StackNavigationState,
+  StackOptions,
+} from '@react-navigation/core';
 import invariant from 'invariant';
 import * as React from 'react';
-import { Text, View, Image, Linking } from 'react-native';
+import { Text, View, Image, Linking, Alert } from 'react-native';
 
 import type { SIWEBackupSecrets } from 'lib/types/siwe-types.js';
 
 import RegistrationButtonContainer from './registration-button-container.react.js';
 import RegistrationButton from './registration-button.react.js';
 import RegistrationContainer from './registration-container.react.js';
 import RegistrationContentContainer from './registration-content-container.react.js';
 import { RegistrationContext } from './registration-context.js';
 import type { RegistrationNavigationProp } from './registration-navigator.react.js';
 import type {
   CoolOrNerdMode,
   AccountSelection,
   AvatarData,
 } from './registration-types.js';
 import commSwooshSource from '../../img/comm-swoosh.png';
 import { logInActionType } from '../../navigation/action-types.js';
-import type { NavigationRoute } from '../../navigation/route-names.js';
+import type { RootNavigationProp } from '../../navigation/root-navigator.react.js';
+import type {
+  NavigationRoute,
+  ScreenParamList,
+} from '../../navigation/route-names.js';
 import { useStyles } from '../../themes/colors.js';
 
 export type RegistrationTermsParams = {
   +userSelections: {
     +coolOrNerdMode?: CoolOrNerdMode,
     +keyserverURL?: string,
     +farcasterID: ?string,
     +accountSelection: AccountSelection,
     +avatarData: ?AvatarData,
     +siweBackupSecrets?: ?SIWEBackupSecrets,
   },
 };
 
 const onTermsOfUsePressed = () => {
   void Linking.openURL('https://comm.app/terms');
 };
 
 const onPrivacyPolicyPressed = () => {
   void Linking.openURL('https://comm.app/privacy');
 };
 
 type Props = {
   +navigation: RegistrationNavigationProp<'RegistrationTerms'>,
   +route: NavigationRoute<'RegistrationTerms'>,
 };
 function RegistrationTerms(props: Props): React.Node {
   const registrationContext = React.useContext(RegistrationContext);
   invariant(registrationContext, 'registrationContext should be set');
   const { register, setCachedSelections } = registrationContext;
 
   const [registrationInProgress, setRegistrationInProgress] =
     React.useState(false);
 
   const { userSelections } = props.route.params;
 
   const clearCachedSelections = React.useCallback(() => {
     setCachedSelections({});
   }, [setCachedSelections]);
 
+  const { navigation } = props;
+  const goBackToHome = navigation.getParent<
+    ScreenParamList,
+    'Registration',
+    StackNavigationState,
+    StackOptions,
+    StackNavigationEventMap,
+    RootNavigationProp<'Registration'>,
+  >()?.goBack;
+  const onNonceExpired = React.useCallback(() => {
+    setCachedSelections(oldUserSelections => ({
+      ...oldUserSelections,
+      ethereumAccount: undefined,
+    }));
+    Alert.alert(
+      'Registration attempt timed out',
+      'Please try to connect your Ethereum wallet again',
+      [{ text: 'OK', onPress: goBackToHome }],
+      {
+        cancelable: false,
+      },
+    );
+  }, [goBackToHome, setCachedSelections]);
+
   const onProceed = React.useCallback(async () => {
     setRegistrationInProgress(true);
     try {
-      await register({ ...userSelections, clearCachedSelections });
+      await register({
+        ...userSelections,
+        clearCachedSelections,
+        onNonceExpired,
+      });
     } finally {
       setRegistrationInProgress(false);
     }
-  }, [register, userSelections, clearCachedSelections]);
+  }, [register, userSelections, clearCachedSelections, onNonceExpired]);
 
-  const { navigation } = props;
   React.useEffect(() => {
     if (!registrationInProgress) {
       return undefined;
     }
     navigation.setOptions({
       gestureEnabled: false,
       headerLeft: null,
     });
     const removeListener = navigation.addListener('beforeRemove', e => {
       if (e.data.action.type !== logInActionType) {
         e.preventDefault();
       }
     });
     return () => {
       navigation.setOptions({
         gestureEnabled: true,
         headerLeft: undefined,
       });
       removeListener();
     };
   }, [navigation, registrationInProgress]);
 
   const styles = useStyles(unboundStyles);
 
   const termsNotice = (
     <Text style={styles.body}>
       By registering, you are agreeing to our{' '}
       <Text style={styles.hyperlinkText} onPress={onTermsOfUsePressed}>
         Terms of Use
       </Text>
       {' and '}
       <Text style={styles.hyperlinkText} onPress={onPrivacyPolicyPressed}>
         Privacy Policy
       </Text>
       .
     </Text>
   );
 
   return (
     <RegistrationContainer>
       <RegistrationContentContainer style={styles.scrollViewContentContainer}>
         <Text style={styles.header}>Finish registration</Text>
         {termsNotice}
         <View style={styles.commSwooshContainer}>
           <Image source={commSwooshSource} style={styles.commSwoosh} />
         </View>
       </RegistrationContentContainer>
       <RegistrationButtonContainer>
         <RegistrationButton
           onPress={onProceed}
           label="Register"
           variant={registrationInProgress ? 'loading' : 'enabled'}
         />
       </RegistrationButtonContainer>
     </RegistrationContainer>
   );
 }
 
 const unboundStyles = {
   scrollViewContentContainer: {
     flexGrow: 1,
   },
   header: {
     fontSize: 24,
     color: 'panelForegroundLabel',
     paddingBottom: 16,
   },
   body: {
     fontFamily: 'Arial',
     fontSize: 15,
     lineHeight: 20,
     color: 'panelForegroundSecondaryLabel',
     paddingBottom: 16,
   },
   commSwooshContainer: {
     flexGrow: 1,
     flexShrink: 1,
     alignItems: 'center',
     justifyContent: 'center',
   },
   commSwoosh: {
     resizeMode: 'center',
     width: '100%',
     height: '100%',
   },
   hyperlinkText: {
     color: 'purpleLink',
   },
 };
 
 export default RegistrationTerms;
diff --git a/native/account/registration/registration-types.js b/native/account/registration/registration-types.js
index 9a0f82f13..1badb7c1f 100644
--- a/native/account/registration/registration-types.js
+++ b/native/account/registration/registration-types.js
@@ -1,69 +1,70 @@
 // @flow
 
 import type {
   UpdateUserAvatarRequest,
   ClientAvatar,
 } from 'lib/types/avatar-types.js';
 import type { NativeMediaSelection } from 'lib/types/media-types.js';
 import type { SIWEResult, SIWEBackupSecrets } from 'lib/types/siwe-types.js';
 
 export type CoolOrNerdMode = 'cool' | 'nerd';
 
 export type EthereumAccountSelection = {
   +accountType: 'ethereum',
   ...SIWEResult,
   +avatarURI: ?string,
 };
 
 export type UsernameAccountSelection = {
   +accountType: 'username',
   +username: string,
   +password: string,
 };
 
 export type AccountSelection =
   | EthereumAccountSelection
   | UsernameAccountSelection;
 
 export type AvatarData =
   | {
       +needsUpload: true,
       +mediaSelection: NativeMediaSelection,
       +clientAvatar: ClientAvatar,
     }
   | {
       +needsUpload: false,
       +updateUserAvatarRequest: UpdateUserAvatarRequest,
       +clientAvatar: ClientAvatar,
     };
 
 export type RegistrationServerCallInput = {
   +coolOrNerdMode?: CoolOrNerdMode,
   +keyserverURL?: string,
   +farcasterID: ?string,
   +accountSelection: AccountSelection,
   +avatarData: ?AvatarData,
   +siweBackupSecrets?: ?SIWEBackupSecrets,
   +clearCachedSelections: () => void,
+  +onNonceExpired: () => mixed,
 };
 
 export type CachedUserSelections = {
   +coolOrNerdMode?: CoolOrNerdMode,
   +keyserverURL?: string,
   +username?: string,
   +password?: string,
   +avatarData?: ?AvatarData,
   +ethereumAccount?: ?EthereumAccountSelection,
   +farcasterID?: string,
   +siweBackupSecrets?: ?SIWEBackupSecrets,
 };
 
 export const ensAvatarSelection: AvatarData = {
   needsUpload: false,
   updateUserAvatarRequest: { type: 'ens' },
   clientAvatar: { type: 'ens' },
 };
 
 export const enableNewRegistrationMode = __DEV__;
 
 export const enableSIWEBackupCreation = __DEV__;