Cannot login to TFS - no errors

Question

If this is hard for me, its gonna be even harder for you. Suddenly, I cannot logon to my TFS server and no errors are received.

This have been running for about a year, but this morning it didnt work.


On the client server:
I'm trying to connect from visual studio and is prompted for username/password. The tfs-server is not in my domain or network. It wont log me in. No errors, just keep prompting me.
In the eventviewer under security i see Logon attempt using explicit credentials. And the logon information are correct. Using Fiddler I say that the request is sent. Furthermore, im able to use the browser and access the TFS.

On another client server both within same network as TFS and not: Works with no problem.

On the TFS: In the log file i see that a request from my bugging client came but there's no entry in the event viewer, whereas logon requests from other servers gives the successful audit entry.

Conclusion: Since im able to logon from other clients than this, I assume that this specific client is bugged. Any ideas?

Answer 1

Hi,
are you able to open your VS Client and then are you trying to connect TFS server through Team Explorer???

Mayur Bondre
TFS Support,Capgemini India

Answer 2

Hi thank you for answering, and yes i am. Thats where i keep being prompted for username password.

Its only from this VPC that noone is able to connect. Works like a charm from other VPCs.

Answer 3

Hi Bams,

What was the result did you get with Fiddler? The http status code and the response. like 401 or 200?

What do you mean by "The tfs-server is not in my domain or network"? Do you mean that the TFS is in Internet?


Best Regards,
Ruiz

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Answer 4

I just discovered som additional and very important information. When logging on to VPC with another AD user - im able to logon to TFS throgh team explorer.

So apparently it has something to do with my ad user.

Answer 5

Hi Bams,

Could you connect to TFS on another client with your ad user? Did you add him to TFS as an member of a project?

Best Regards,
Ruiz

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Please remember to click “Mark as Answer” on the post that helps you, and to click “Unmark as Answer” if a marked post does not actually answer your question. This can be beneficial to other community members reading the thread. Sincerely, Ruiz Yi

Answer 6

Hi, im not able to check if im able to logon from any other client with that AD user. I am a member of the project since the problem only accour on this server with this AD user. With another AD user I can logon to the same client VPC and then Im able to connect to TFS using my own tfs logon.

Answer 7

I had the support team create a new AD user for me, and then it worked. First they tried to delete my profile on the VPC, but still that didnt help. I still dont know whats wrong with my other AD user.

Answer 8

Hi Bams,

Thank you for your reply.

I suspect that there would be something corrupted or confused for your previous AD user.

Thank you for your kindly sharing. :)

Best regards,
Yichun Chen

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