Team Foundation services are not available

Question

TF400324: Team Foundation services are not available from server servername.visualstudio.com\DefaultCollection.
Technical information (for administrator):
  The underlying connection was closed:

Could not establish trust relationship for the SSL/TLS secure channel.

Answer 1

Hi Narendramacha, 

Thanks for your post.

You’re using TFS Service(VS Online)?

Can you connect to your TFS Service account using the same user before?

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Answer 2

Don't know the reason why I got this error ,that time when I tried to connect to visualstudio account in web browser it was redirected to website not found page, I really surprised why this happening but after that I restarted my PC that problem gone. 

Thanks for the reply.