diff --git a/apps/trading-e2e/src/integration/global.cy.ts b/apps/trading-e2e/src/integration/global.cy.ts
index c4c468351..5e44b7a9a 100644
--- a/apps/trading-e2e/src/integration/global.cy.ts
+++ b/apps/trading-e2e/src/integration/global.cy.ts
@@ -29,7 +29,7 @@ describe('vega wallet', () => {
     cy.getByTestId(form).find('#wallet').click().type('invalid name');
     cy.getByTestId(form).find('#passphrase').click().type('invalid password');
     cy.getByTestId('rest-connector-form').find('button[type=submit]').click();
-    cy.getByTestId('form-error').should('have.text', 'Authentication failed');
+    cy.getByTestId('form-error').should('have.text', 'Invalid credentials');
   });
 
   it('doesnt connect with invalid fields', () => {
diff --git a/libs/wallet/src/connect-dialog/connect-dialog.spec.tsx b/libs/wallet/src/connect-dialog/connect-dialog.spec.tsx
index 77c85e000..6db0d0c25 100644
--- a/libs/wallet/src/connect-dialog/connect-dialog.spec.tsx
+++ b/libs/wallet/src/connect-dialog/connect-dialog.spec.tsx
@@ -146,11 +146,12 @@ it('Successful connection using custom url', async () => {
 });
 
 it('Unsuccessful connection using rest auth form', async () => {
+  const errMessage = 'Error message';
   // Error from service
   let spy = jest
     .spyOn(defaultProps.connectors['rest'] as RestConnector, 'authenticate')
     .mockImplementation(() =>
-      Promise.resolve({ success: false, error: 'Error message' })
+      Promise.resolve({ success: false, error: errMessage })
     );
 
   render(generateJSX({ dialogOpen: true }));
@@ -167,9 +168,7 @@ it('Unsuccessful connection using rest auth form', async () => {
 
   expect(spy).toHaveBeenCalledWith(DEFAULT_URL, fields);
 
-  expect(screen.getByTestId('form-error')).toHaveTextContent(
-    'Something went wrong'
-  );
+  expect(screen.getByTestId('form-error')).toHaveTextContent(errMessage);
   expect(defaultProps.setDialogOpen).not.toHaveBeenCalled();
 
   // Fetch failed due to wallet not running
diff --git a/libs/wallet/src/connectors/rest-connector.ts b/libs/wallet/src/connectors/rest-connector.ts
index cc66796ae..065ba7180 100644
--- a/libs/wallet/src/connectors/rest-connector.ts
+++ b/libs/wallet/src/connectors/rest-connector.ts
@@ -1,7 +1,8 @@
-import { LocalStorage } from '@vegaprotocol/react-helpers';
+import * as Sentry from '@sentry/react';
+import { LocalStorage, t } from '@vegaprotocol/react-helpers';
 import { WALLET_CONFIG } from '../storage-keys';
 import type { VegaConnector } from './vega-connector';
-import type { TransactionSubmission } from '../wallet-types';
+import type { TransactionError, TransactionSubmission } from '../wallet-types';
 import { z } from 'zod';
 
 // Perhaps there should be a default ConnectorConfig that others can extend off. Do all connectors
@@ -12,7 +13,11 @@ interface RestConnectorConfig {
   url: string | null;
 }
 
-type Endpoint = 'auth/token' | 'command/sync' | 'keys';
+enum Endpoints {
+  Auth = 'auth/token',
+  Command = 'command/sync',
+  Keys = 'keys',
+}
 
 export const AuthTokenSchema = z.object({
   token: z.string(),
@@ -87,11 +92,19 @@ export class RestConnector implements VegaConnector {
     try {
       this.url = url;
 
-      const res = await this.request('auth/token', {
+      const res = await this.request(Endpoints.Auth, {
         method: 'post',
         body: JSON.stringify(params),
       });
 
+      if (res.status === 403) {
+        return { success: false, error: t('Invalid credentials') };
+      }
+
+      if (res.error) {
+        return { success: false, error: res.error };
+      }
+
       const data = AuthTokenSchema.parse(res.data);
 
       // Store the token, and other things for later
@@ -104,19 +117,23 @@ export class RestConnector implements VegaConnector {
 
       return { success: true, error: null };
     } catch (err) {
-      return { success: false, error: err };
+      return { success: false, error: 'Authentication failed' };
     }
   }
 
   async connect() {
     try {
-      const res = await this.request('keys', {
+      const res = await this.request(Endpoints.Keys, {
         method: 'get',
         headers: {
           authorization: `Bearer ${this.token}`,
         },
       });
 
+      if (res.error) {
+        return null;
+      }
+
       const data = GetKeysSchema.parse(res.data);
 
       return data.keys;
@@ -129,14 +146,14 @@ export class RestConnector implements VegaConnector {
 
   async disconnect() {
     try {
-      await this.request('auth/token', {
+      await this.request(Endpoints.Auth, {
         method: 'delete',
         headers: {
           authorization: `Bearer ${this.token}`,
         },
       });
     } catch (err) {
-      console.error(err);
+      Sentry.captureException(err);
     } finally {
       // Always clear config, if authTokenDelete fails the user still tried to
       // connect so clear the config (and containing token) from storage
@@ -146,7 +163,7 @@ export class RestConnector implements VegaConnector {
 
   async sendTx(body: TransactionSubmission) {
     try {
-      const res = await this.request('command/sync', {
+      const res = await this.request(Endpoints.Command, {
         method: 'post',
         body: JSON.stringify(body),
         headers: {
@@ -154,18 +171,23 @@ export class RestConnector implements VegaConnector {
         },
       });
 
+      // User rejected
       if (res.status === 401) {
-        // User rejected
         return null;
       }
 
+      if (res.error) {
+        return {
+          error: res.error,
+        };
+      }
+
       const data = TransactionResponseSchema.parse(res.data);
 
       return data;
     } catch (err) {
-      return {
-        error: 'Failed to fetch',
-      };
+      Sentry.captureException(err);
+      return null;
     }
   }
 
@@ -190,27 +212,57 @@ export class RestConnector implements VegaConnector {
     LocalStorage.removeItem(this.configKey);
   }
 
-  private async request(endpoint: Endpoint, options: RequestInit) {
-    const fetchResult = await fetch(`${this.url}/${endpoint}`, {
-      ...options,
-      headers: {
-        ...options.headers,
-        'Content-Type': 'application/json',
-      },
-    });
+  /** Parse more complex error object into a single string */
+  private parseError(err: TransactionError): string {
+    if ('error' in err) {
+      return err.error;
+    }
 
-    // auth/token delete doesnt return json
-    if (endpoint === 'auth/token' && options.method === 'delete') {
-      const textResult = await fetchResult.text();
+    if ('errors' in err) {
+      return err.errors['*'].join(', ');
+    }
+
+    return t("Something wen't wrong");
+  }
+
+  private async request(
+    endpoint: Endpoints,
+    options: RequestInit
+  ): Promise<{ status?: number; data?: unknown; error?: string }> {
+    try {
+      const fetchResult = await fetch(`${this.url}/${endpoint}`, {
+        ...options,
+        headers: {
+          ...options.headers,
+          'Content-Type': 'application/json',
+        },
+      });
+
+      if (!fetchResult.ok) {
+        const errorData = await fetchResult.json();
+        return {
+          status: fetchResult.status,
+          error: this.parseError(errorData),
+        };
+      }
+
+      // auth/token delete doesnt return json
+      if (endpoint === 'auth/token' && options.method === 'delete') {
+        const textResult = await fetchResult.text();
+        return {
+          status: fetchResult.status,
+          data: textResult,
+        };
+      } else {
+        const jsonResult = await fetchResult.json();
+        return {
+          status: fetchResult.status,
+          data: jsonResult,
+        };
+      }
+    } catch (err) {
       return {
-        status: fetchResult.status,
-        data: textResult,
-      };
-    } else {
-      const jsonResult = await fetchResult.json();
-      return {
-        status: fetchResult.status,
-        data: jsonResult,
+        error: 'Failed to fetch',
       };
     }
   }
diff --git a/libs/wallet/src/connectors/vega-connector.ts b/libs/wallet/src/connectors/vega-connector.ts
index a59f44f4a..a8fcd4ad4 100644
--- a/libs/wallet/src/connectors/vega-connector.ts
+++ b/libs/wallet/src/connectors/vega-connector.ts
@@ -4,14 +4,6 @@ import type {
   TransactionResponse,
 } from '../wallet-types';
 
-type ErrorResponse =
-  | {
-      error: string;
-    }
-  | {
-      errors: object;
-    };
-
 export interface VegaConnector {
   /** Description of how to use this connector */
   description: string;
@@ -25,5 +17,5 @@ export interface VegaConnector {
   /** Send a TX to the network. Only support order submission for now */
   sendTx: (
     body: TransactionSubmission
-  ) => Promise<TransactionResponse | ErrorResponse | null>;
+  ) => Promise<TransactionResponse | { error: string } | null>;
 }
diff --git a/libs/wallet/src/context.ts b/libs/wallet/src/context.ts
index bcc8bf26a..00fa7568d 100644
--- a/libs/wallet/src/context.ts
+++ b/libs/wallet/src/context.ts
@@ -1,4 +1,4 @@
-import type { TransactionError, VegaKey } from './wallet-types';
+import type { VegaKey } from './wallet-types';
 import { createContext } from 'react';
 import type { VegaConnector } from './connectors';
 import type {
@@ -32,7 +32,7 @@ export interface VegaWalletContextShape {
   /** Send a transaction to the network, only order submissions for now */
   sendTx: (
     tx: TransactionSubmission
-  ) => Promise<TransactionResponse | TransactionError> | null;
+  ) => Promise<TransactionResponse | { error: string }> | null;
 }
 
 export const VegaWalletContext = createContext<
diff --git a/libs/wallet/src/rest-connector-form.tsx b/libs/wallet/src/rest-connector-form.tsx
index 8cbbb6be7..c8dcc075f 100644
--- a/libs/wallet/src/rest-connector-form.tsx
+++ b/libs/wallet/src/rest-connector-form.tsx
@@ -33,6 +33,7 @@ export function RestConnectorForm({
   });
 
   async function onSubmit(fields: FormFields) {
+    const authFailedMessage = t('Authentication failed');
     try {
       setError('');
       const res = await connector.authenticate(fields.url, {
@@ -43,13 +44,13 @@ export function RestConnectorForm({
       if (res.success) {
         onAuthenticate();
       } else {
-        throw res.error;
+        setError(res.error || authFailedMessage);
       }
     } catch (err) {
       if (err instanceof TypeError) {
         setError(t(`Wallet not running at ${fields.url}`));
       } else if (err instanceof Error) {
-        setError(t('Authentication failed'));
+        setError(authFailedMessage);
       } else {
         setError(t('Something went wrong'));
       }
diff --git a/libs/wallet/src/use-vega-transaction.spec.tsx b/libs/wallet/src/use-vega-transaction.spec.tsx
index 54d2f2dba..ca145bf39 100644
--- a/libs/wallet/src/use-vega-transaction.spec.tsx
+++ b/libs/wallet/src/use-vega-transaction.spec.tsx
@@ -53,14 +53,12 @@ it('Handles a single error', async () => {
     result.current.send({} as OrderSubmissionBody);
   });
   expect(result.current.transaction.status).toEqual(VegaTxStatus.Error);
-  expect(result.current.transaction.error).toEqual({ error: errorMessage });
+  expect(result.current.transaction.error).toEqual(errorMessage);
 });
 
 it('Handles multiple errors', async () => {
   const errorObj = {
-    errors: {
-      something: 'Went wrong!',
-    },
+    error: 'Went wrong!',
   };
   const mockSendTx = jest.fn().mockReturnValue(Promise.resolve(errorObj));
   const { result } = setup({ sendTx: mockSendTx });
@@ -68,7 +66,7 @@ it('Handles multiple errors', async () => {
     result.current.send({} as OrderSubmissionBody);
   });
   expect(result.current.transaction.status).toEqual(VegaTxStatus.Error);
-  expect(result.current.transaction.error).toEqual(errorObj);
+  expect(result.current.transaction.error).toEqual(errorObj.error);
 });
 
 it('Returns the signature if successful', async () => {
diff --git a/libs/wallet/src/use-vega-transaction.tsx b/libs/wallet/src/use-vega-transaction.tsx
index d65b36bed..8df695734 100644
--- a/libs/wallet/src/use-vega-transaction.tsx
+++ b/libs/wallet/src/use-vega-transaction.tsx
@@ -1,6 +1,6 @@
 import type { ReactNode } from 'react';
 import { useCallback, useMemo, useState } from 'react';
-import type { TransactionError, TransactionSubmission } from './wallet-types';
+import type { TransactionSubmission } from './wallet-types';
 import { useVegaWallet } from './use-vega-wallet';
 import { VegaTransactionDialog } from './vega-transaction-dialog';
 import type { Intent } from '@vegaprotocol/ui-toolkit';
@@ -22,7 +22,7 @@ export enum VegaTxStatus {
 
 export interface VegaTxState {
   status: VegaTxStatus;
-  error: TransactionError | null;
+  error: string | null;
   txHash: string | null;
   signature: string | null;
   dialogOpen: boolean;
@@ -47,13 +47,6 @@ export const useVegaTransaction = () => {
     }));
   }, []);
 
-  const handleError = useCallback(
-    (error: TransactionError) => {
-      setTransaction({ error, status: VegaTxStatus.Error });
-    },
-    [setTransaction]
-  );
-
   const reset = useCallback(() => {
     setTransaction(initialState);
   }, [setTransaction]);
@@ -81,7 +74,7 @@ export const useVegaTransaction = () => {
       }
 
       if (isError(res)) {
-        handleError(res);
+        setTransaction({ error: res.error, status: VegaTxStatus.Error });
         return;
       }
 
@@ -99,7 +92,7 @@ export const useVegaTransaction = () => {
 
       return null;
     },
-    [sendTx, handleError, setTransaction, reset]
+    [sendTx, setTransaction, reset]
   );
 
   const TransactionDialog = useMemo(() => {
@@ -125,12 +118,8 @@ export const useVegaTransaction = () => {
   };
 };
 
-const isError = (error: unknown): error is TransactionError => {
-  if (
-    error !== null &&
-    typeof error === 'object' &&
-    ('error' in error || 'errors' in error)
-  ) {
+const isError = (error: unknown): error is { error: string } => {
+  if (error !== null && typeof error === 'object' && 'error' in error) {
     return true;
   }
   return false;
diff --git a/libs/wallet/src/vega-transaction-dialog/vega-transaction-dialog.spec.tsx b/libs/wallet/src/vega-transaction-dialog/vega-transaction-dialog.spec.tsx
index 145d70b8e..6e92b8b02 100644
--- a/libs/wallet/src/vega-transaction-dialog/vega-transaction-dialog.spec.tsx
+++ b/libs/wallet/src/vega-transaction-dialog/vega-transaction-dialog.spec.tsx
@@ -57,7 +57,7 @@ describe('VegaTransactionDialog', () => {
         {...props}
         transaction={{
           ...props.transaction,
-          error: { error: 'rejected' },
+          error: 'rejected',
           status: VegaTxStatus.Error,
         }}
       />
diff --git a/libs/wallet/src/vega-transaction-dialog/vega-transaction-dialog.tsx b/libs/wallet/src/vega-transaction-dialog/vega-transaction-dialog.tsx
index 522e4cd03..463df6290 100644
--- a/libs/wallet/src/vega-transaction-dialog/vega-transaction-dialog.tsx
+++ b/libs/wallet/src/vega-transaction-dialog/vega-transaction-dialog.tsx
@@ -70,18 +70,11 @@ export const VegaDialog = ({ transaction }: VegaDialogProps) => {
   }
 
   if (transaction.status === VegaTxStatus.Error) {
-    let content = null;
-
-    if (transaction.error) {
-      if ('errors' in transaction.error) {
-        content = transaction.error.errors['*'].map((e) => <p>{e}</p>);
-      } else if ('error' in transaction.error) {
-        content = <p>{transaction.error.error}</p>;
-      } else {
-        content = <p>{t('Something went wrong')}</p>;
-      }
-    }
-    return <div data-testid={transaction.status}>{content}</div>;
+    return (
+      <div data-testid={transaction.status}>
+        <p>{transaction.error}</p>
+      </div>
+    );
   }
 
   if (transaction.status === VegaTxStatus.Pending) {
diff --git a/libs/withdraws/src/lib/withdraw-dialog.tsx b/libs/withdraws/src/lib/withdraw-dialog.tsx
index 680d359ef..85bdd9de8 100644
--- a/libs/withdraws/src/lib/withdraw-dialog.tsx
+++ b/libs/withdraws/src/lib/withdraw-dialog.tsx
@@ -69,18 +69,6 @@ const getProps = (
   ethTx: EthTxState,
   ethUrl: string
 ) => {
-  const renderVegaTxError = () => {
-    if (vegaTx.error) {
-      if ('errors' in vegaTx.error) {
-        return vegaTx.error.errors['*'].map((e) => <p>{e}</p>);
-      } else if ('error' in vegaTx.error) {
-        return <p>{vegaTx.error.error}</p>;
-      } else {
-        return <p>{t('Something went wrong')}</p>;
-      }
-    }
-    return null;
-  };
   const vegaTxPropsMap: Record<VegaTxStatus, DialogProps> = {
     [VegaTxStatus.Default]: {
       title: '',
@@ -92,7 +80,11 @@ const getProps = (
       title: t('Withdrawal transaction failed'),
       icon: <Icon name="warning-sign" size={20} />,
       intent: Intent.Danger,
-      children: <Step>{renderVegaTxError()}</Step>,
+      children: (
+        <Step>
+          <p>{vegaTx.error}</p>
+        </Step>
+      ),
     },
     [VegaTxStatus.Requested]: {
       title: t('Confirm withdrawal'),