Error Login Received a request with an unmatched or no authentication scheme. 401

Hi fabio78 

 

It usually means the server doesn’t like how the request is being authenticated, so it keeps sending you back to the login page.

Since you can open the web portal directly on the server but not from other machines, it’s very likely a configuration issue rather than a username/password problem. Here are a few things you can try to check:

• Open the Report Server config file (rsreportserver.config) and make sure Windows authentication is enabled. In the <AuthenticationTypes> section you should see something like RSWindowsNTLM. If this is missing or only custom auth is configured, external logins can fail.
• Make sure you’re using the same URL from the another PC as on the server (for example, http://servername/reports or https://servername/reports). If HTTPS, reverse proxy, or port changes were recently made, they can break authentication and cause 401 errors.
• In the browser on the another PCs, add the report server URL to Local Intranet/Trusted Sites so the browser is allowed to send Windows credentials automatically.
• Double‑check that the account you’re using is actually granted access in Report Server (for example, as a System Administrator or Content Manager).

In many cases, the fix ends up being: enable RSWindowsNTLM in the config, make sure the HTTP/HTTPS bindings are correct, and access the portal using that exact URL from the another machines. After that, the login prompt stops looping and you can sign in normally.

 

 

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Hi fabio78,

We would like to confirm if our community members answer resolves your query or if you need further help. If you still have any questions or need more support, please feel free to let us know. We are happy to help you.

grazitti_sapna ,Thanks for your prompt response

 

 

Thank you for your patience and look forward to hearing from you.
Best Regards,
Prashanth Are
MS Fabric community support