Sign-in failed error with 100% repeatability

Question

Sign-in failed error with 100% repeatability

Steve Gray 35

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I am trying to log in to portal.azure.com, with and I get this error 100% of the time. Its been going on for several days now.

VEMULA SRISAI 9,255 Reputation points Microsoft External Staff Moderator

2026-02-17T01:04:33.7766667+00:00
Hello Steve Gray,

This issue will be resolved by signing in using the tenant-specific Azure portal URL and the tenant ID I have provided over the private messages tab:

HTTP

https://portal.azure.com/<tenant-ID>

Once you accessed the portal through the tenant-scoped URL, the tenant became active again and you will be able to manage resources without further issues.

And the tenant will be restored successfully.

If this answers your query, do click Accept Answer and Yes for was this answer helpful, which may help members with similar questions. If you have any other questions, let me know in the “comments” and I would be happy to help you.
VEMULA SRISAI 9,255 Reputation points Microsoft External Staff Moderator

2026-02-17T01:05:33.8566667+00:00

Steve Gray I have shared the tenant specific URL in the private message, please check

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VEMULA SRISAI 9,255 Reputation points Microsoft External Staff Moderator

2026-02-17T01:04:33.7766667+00:00

Hello Steve Gray,

This issue will be resolved by signing in using the tenant-specific Azure portal URL and the tenant ID I have provided over the private messages tab:

HTTP

https://portal.azure.com/<tenant-ID>

Once you accessed the portal through the tenant-scoped URL, the tenant became active again and you will be able to manage resources without further issues.

And the tenant will be restored successfully.

If this answers your query, do click Accept Answer and Yes for was this answer helpful, which may help members with similar questions. If you have any other questions, let me know in the “comments” and I would be happy to help you.
VEMULA SRISAI 9,255 Reputation points Microsoft External Staff Moderator

2026-02-17T01:05:33.8566667+00:00

Steve Gray I have shared the tenant specific URL in the private message, please check

Answer 1

Steve Gray Could you please try the following troubleshooting steps:

Could you please try the following troubleshooting steps:

Clear your browser cache and cookies, especially for:
- microsoftonline.com
- azure.com
Try accessing the portal using a different browser.
Disable VPN (if enabled) and attempt to sign in again.
Try connecting from a different network (for example, a mobile hotspot) to rule out any firewall or proxy restrictions.
Also try accessing the portal from the following URLs:
- https://aad.portal.azure.com
- https://entra.microsoft.com

If the issue works when using a different network, it is likely that a firewall, proxy, SSL inspection, or network security appliance is blocking Microsoft authentication endpoints.

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Sign-in failed error with 100% repeatability

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