Cannot verify client 3000

I am using xcode 7.1 and trying to upload my app to the app store directly through xcode. While uploading I am getting a weird error:-

cannot verify client 3000

Note:- I recently made changes in the accounts (xcode preference section). Is this related to my error?

I also restart the xcode but issue still there?

I already checked this question on SO, but they say restart your xcode. But this does not solve my problem.