the specified credentials were rejected by the server

[wedsall]

Hi,
Just looking for a place to share a potential fix for the error: the specified credentials were rejected by the server. If your account is properly set as administrator but nothing seems to make sense, this may be the fix for you..

In my case, this error happened due to DNS mismatching. If your server (testserver for example) from itself resolves to testserver.domain.com, but the system which you use pywinrm resolves testserver to testserver.something.else, this is a problem.

One fix is to hack your hostfile on the pywinrm hosting server so that testserver resolution matches in both locations.