Microsoft Security | Microsoft Entra | Microsoft Entra ID
A cloud-based identity and access management service for securing user authentication and resource access
Unable to Access Azure Portal from my Microsoft Account
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Gururaj Radhakrishna
5
Reputation points
Hello,
I am unable to login to my Azure Portal dashboard. When I try to access the portal via https://portal.azure.com it completes all the login steps MFA (Authenticator App) and confirmations etc. I am able to see the dashboard for a couple of seconds and then redirects and throws the following error.
Error code: post_request_failed
Error message: post_request_failed: Network request failed: If the browser threw a CORS error, check that the redirectUri is registered in the Azure App Portal as type 'SPA'
I have tried 3 different browsers (Microsoft Edge, Google Chrome and Perplexity Comet) and the end result is the same.
Can you please assist me with this? I have MSDN credits and wish to use the same for some learning and research.
Regards,
Gururaj
Microsoft Security | Microsoft Entra | Microsoft Entra ID
{count} vote
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![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(153.6, 7.000000000000001%, 24%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EC3%3C/text%3E%3C/svg%3E)
Carolyne-3676 881 Reputation points2025-09-08T16:55:49.24+00:00 Hello Gururaj!
Try these troubleshooting steps:
Clear all browsing data (cache, cookies, site data) for portal.azure.com
Try this link- https://ms.portal.azure.com/
Try incognito/private browsing mode
Test from different network (like a mobile hotspot)
If logging in from an app you have registered-this documentation details how to troubleshoot CORS errors-https://learn.microsoft.com/en-us/troubleshoot/entra/entra-id/app-integration/troubleshoot-cross-origin-resource-sharing-issues -
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(281.6, 17%, 37%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EPC%3C/text%3E%3C/svg%3E)
Praveen Chivarla 2,005 Reputation points Microsoft External Staff Moderator2025-09-09T11:43:16.66+00:00 Hi Gururaj,
Thank you for posting your query on Microsoft Q&A.
As we understand, you can complete the login process including multi-factor authentication (MFA) on the Azure Portal, but soon after seeing the dashboard, you are redirected with the following error:
Error code: post_request_failed``Error message: post_request_failed: Network request failed: If the browser threw a CORS error, check that the redirectUri is registered in the Microsoft Entra admin center as type 'SPA'In addition to Carolyne-3676, please check with the below information more clarification.
This error is caused by a CORS (Cross-Origin Resource Sharing) restriction related to the redirect URI used during authentication with Microsoft Entra ID (formerly Azure Active Directory). The redirect URI you use after login must be registered in Microsoft Entra ID as a Single Page Application (SPA) type. If it is not, modern browsers block the authentication redirect, causing this error.
Please follow the steps below to fix the issue:
1. Verify Redirect URI Registration in Microsoft Entra admin center
· Log in to Microsoft Entra admin center.
· Navigate to Identity > App registrations.
· Select the relevant application (e.g., the app representing the Azure Portal or your custom app).
· Open the Authentication section and check the redirect URIs.
· Confirm the redirect URI your app uses is listed with the type "Single Page Application (SPA)".
· Add or correct the redirect URI if missing or incorrect.
2. Ensure Application Redirect URI Matches Registration
· Confirm the URI configured in your application exactly matches the registered URI in Microsoft Entra ID, including scheme (https), subdomain, and path.
3. Update Authentication Library and Settings
· If using MSAL (Microsoft Authentication Library), ensure it is updated to the latest version supporting SPA redirect flows.
· Consider setting storeAuthStateInCookie: true in MSAL config to improve browser compatibility.
4. Clear Browser Cache
· Remove cached cookies and site data to avoid stale authentication state.
5. Use Browser Developer Tools
· Monitor console logs and network trace for CORS errors and failed requests to help diagnose.
Please refer to:
Troubleshoot authentication errors | Microsoft Entra
Register a Single Page Application in Microsoft Entra
Cross-Origin Resource Sharing (CORS) in Microsoft Entra
Microsoft Authentication Library (MSAL) for JavaScript
Please let me know if this answers your question or if you need any further assistance.
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Praveen Chivarla 2,005 Reputation points Microsoft External Staff Moderator
2025-09-10T08:29:25.6266667+00:00 Hi Gururaj,
Following up to check if you had a chance to review the information provided? Did it help resolve your issue? Please feel free to let us know if you have any other questions.
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Praveen Chivarla 2,005 Reputation points Microsoft External Staff Moderator
2025-09-11T08:32:56.4833333+00:00 Hi Gururaj,
Following up to check if you had a chance to review the information provided? Did it help resolve your issue? Please feel free to let us know if you have any other questions.
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