diff --git a/src/core/classes/errors/errors.ts b/src/core/classes/errors/errors.ts
index 9a4b21a23..3c4f6877a 100644
--- a/src/core/classes/errors/errors.ts
+++ b/src/core/classes/errors/errors.ts
@@ -23,6 +23,7 @@ import { CoreAjaxWSError } from './ajaxwserror';
 import { CoreCaptureError } from './captureerror';
 import { CoreNetworkError } from './network-error';
 import { CoreSiteError } from './siteerror';
+import { CoreLoginError } from './loginerror';
 import { CoreErrorWithOptions } from './errorwithtitle';
 import { CoreHttpError } from './httperror';
 
@@ -35,6 +36,7 @@ export const CORE_ERRORS_CLASSES: Type<unknown>[] = [
     CoreNetworkError,
     CoreSilentError,
     CoreSiteError,
+    CoreLoginError,
     CoreWSError,
     CoreErrorWithOptions,
     CoreHttpError,
diff --git a/src/core/classes/errors/loginerror.ts b/src/core/classes/errors/loginerror.ts
new file mode 100644
index 000000000..7b92853af
--- /dev/null
+++ b/src/core/classes/errors/loginerror.ts
@@ -0,0 +1,37 @@
+// (C) Copyright 2015 Moodle Pty Ltd.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+import { CoreSiteError, CoreSiteErrorOptions } from '@classes/errors/siteerror';
+
+/**
+ * Error returned when performing operations during login.
+ */
+export class CoreLoginError extends CoreSiteError {
+
+    critical?: boolean;
+    loggedOut?: boolean;
+
+    constructor(options: CoreLoginErrorOptions) {
+        super(options);
+
+        this.critical = options.critical;
+        this.loggedOut = options.loggedOut;
+    }
+
+}
+
+export type CoreLoginErrorOptions = CoreSiteErrorOptions & {
+    critical?: boolean; // Whether the error is important enough to abort the operation.
+    loggedOut?: boolean; // Whether site has been marked as logged out.
+};
diff --git a/src/core/classes/errors/siteerror.ts b/src/core/classes/errors/siteerror.ts
index 6858d3e6a..cbb441178 100644
--- a/src/core/classes/errors/siteerror.ts
+++ b/src/core/classes/errors/siteerror.ts
@@ -17,14 +17,12 @@ import { CoreSitePublicConfigResponse } from '@classes/site';
 import { CoreUserSupport } from '@features/user/services/support';
 
 /**
- * Error returned when performing operations regarding a site (check if it exists, authenticate user, etc.).
+ * Error returned when performing operations regarding a site.
  */
 export class CoreSiteError extends CoreError {
 
     errorcode?: string;
     errorDetails?: string;
-    critical?: boolean;
-    loggedOut?: boolean;
     contactSupport?: boolean;
     siteConfig?: CoreSitePublicConfigResponse;
 
@@ -33,8 +31,6 @@ export class CoreSiteError extends CoreError {
 
         this.errorcode = options.errorcode;
         this.errorDetails = options.errorDetails;
-        this.critical = options.critical;
-        this.loggedOut = options.loggedOut;
         this.contactSupport = options.contactSupport;
         this.siteConfig = options.siteConfig;
     }
@@ -86,11 +82,9 @@ function getErrorMessage(options: CoreSiteErrorOptions): string {
 
 export type CoreSiteErrorOptions = {
     message: string;
-    fallbackMessage?: string; // Message to use if contacting support was intended but isn't possible.
-    errorcode?: string;
-    errorDetails?: string;
-    critical?: boolean; // Whether the error is important enough to abort the operation.
-    loggedOut?: boolean; // Whether site has been marked as logged out.
-    contactSupport?: boolean;
+    fallbackMessage?: string; // Message to use when contacting support is not possible but warranted.
+    errorcode?: string; // Technical error code useful for technical assistance.
+    errorDetails?: string; // Technical error details useful for technical assistance.
+    contactSupport?: boolean; // Whether this error warrants contacting site support or not.
     siteConfig?: CoreSitePublicConfigResponse;
 };
diff --git a/src/core/features/login/tests/credentials.test.ts b/src/core/features/login/tests/credentials.test.ts
index 265ce4f75..f8581b00f 100644
--- a/src/core/features/login/tests/credentials.test.ts
+++ b/src/core/features/login/tests/credentials.test.ts
@@ -14,7 +14,7 @@
 
 import { CoreSharedModule } from '@/core/shared.module';
 import { findElement, mockSingleton, renderPageComponent, requireElement } from '@/testing/utils';
-import { CoreSiteError } from '@classes/errors/siteerror';
+import { CoreLoginError } from '@classes/errors/loginerror';
 import { CoreLoginComponentsModule } from '@features/login/components/components.module';
 import { CoreLoginCredentialsPage } from '@features/login/pages/credentials/credentials';
 import { CoreSites } from '@services/sites';
@@ -42,7 +42,7 @@ describe('Credentials page', () => {
         // Arrange.
         mockSingleton(CoreSites, {
             getUserToken: () => {
-                throw new CoreSiteError({
+                throw new CoreLoginError({
                     message: '',
                     errorcode: 'invalidlogin',
                 });
diff --git a/src/core/services/sites.ts b/src/core/services/sites.ts
index f19d35895..6e0ea348b 100644
--- a/src/core/services/sites.ts
+++ b/src/core/services/sites.ts
@@ -34,7 +34,7 @@ import {
 } from '@classes/site';
 import { SQLiteDB, SQLiteDBRecordValues, SQLiteDBTableSchema } from '@classes/sqlitedb';
 import { CoreError } from '@classes/errors/error';
-import { CoreSiteError } from '@classes/errors/siteerror';
+import { CoreLoginError } from '@classes/errors/loginerror';
 import { makeSingleton, Translate, Http } from '@singletons';
 import { CoreLogger } from '@singletons/logger';
 import {
@@ -313,7 +313,7 @@ export class CoreSitesProvider {
                 message += config.maintenancemessage;
             }
 
-            throw new CoreSiteError({
+            throw new CoreLoginError({
                 message,
                 critical: true,
             });
@@ -336,8 +336,8 @@ export class CoreSitesProvider {
         errorcode: string,
         errorDetails: string,
         siteConfig: CoreSitePublicConfigResponse,
-    ): CoreSiteError {
-        return new CoreSiteError({
+    ): CoreLoginError {
+        return new CoreLoginError({
             errorcode,
             errorDetails,
             siteConfig,
@@ -349,16 +349,19 @@ export class CoreSitesProvider {
     }
 
     /**
-     * Treat an error returned by getPublicConfig in checkSiteWithProtocol. Converts the error to a CoreSiteError.
+     * Treat an error returned by getPublicConfig in checkSiteWithProtocol. Converts the error to a CoreLoginError.
      *
      * @param siteUrl Site URL.
      * @param error Error returned.
      * @return Promise resolved with the treated error.
      */
-    protected async treatGetPublicConfigError(siteUrl: string, error: CoreAjaxError | CoreAjaxWSError): Promise<CoreSiteError> {
-        if (!('errorcode' in error)) {
+    protected async treatGetPublicConfigError(
+        siteUrl: string,
+        error: CoreError | CoreAjaxError | CoreAjaxWSError,
+    ): Promise<CoreLoginError> {
+        if (error instanceof CoreAjaxError || !('errorcode' in error)) {
             // The WS didn't return data, probably cannot connect.
-            return new CoreSiteError({
+            return new CoreLoginError({
                 message: error.message || '',
                 critical: false, // Allow fallback to http if siteUrl uses https.
             });
@@ -385,7 +388,7 @@ export class CoreSitesProvider {
             critical = false; // Keep checking fallback URLs.
         }
 
-        return new CoreSiteError({
+        return new CoreLoginError({
             message: error.message,
             errorcode: error.errorcode,
             critical,
@@ -410,27 +413,27 @@ export class CoreSitesProvider {
                 .toPromise();
         } catch (error) {
             // Default error messages are kinda bad, return our own message.
-            throw new CoreSiteError({
+            throw new CoreLoginError({
                 message: Translate.instant('core.cannotconnecttrouble'),
             });
         }
 
         if (data === null) {
             // Cannot connect.
-            throw new CoreSiteError({
+            throw new CoreLoginError({
                 message: Translate.instant('core.cannotconnect', { $a: CoreSite.MINIMUM_MOODLE_VERSION }),
             });
         }
 
         if (data.errorcode && (data.errorcode == 'enablewsdescription' || data.errorcode == 'requirecorrectaccess')) {
-            throw new CoreSiteError({
+            throw new CoreLoginError({
                 errorcode: data.errorcode,
                 message: data.error ?? '',
             });
         }
 
         if (data.error && data.error == 'Web services must be enabled in Advanced features.') {
-            throw new CoreSiteError({
+            throw new CoreLoginError({
                 errorcode: 'enablewsdescription',
                 message: data.error,
             });
@@ -492,13 +495,13 @@ export class CoreSitesProvider {
                         const redirect = await CoreUtils.checkRedirect(loginUrl);
 
                         if (redirect) {
-                            throw new CoreSiteError({
+                            throw new CoreLoginError({
                                 message: Translate.instant('core.login.sitehasredirect'),
                             });
                         }
                     }
 
-                    throw new CoreSiteError({
+                    throw new CoreLoginError({
                         message: data.error,
                         errorcode: data.errorcode,
                     });
@@ -641,7 +644,7 @@ export class CoreSitesProvider {
             await this.setSiteLoggedOut(siteId);
         }
 
-        throw new CoreSiteError({
+        throw new CoreLoginError({
             message: Translate.instant(errorKey, translateParams),
             errorcode: errorCode,
             loggedOut: true,