Few things disrupt a remote workday faster than an RDP connection failing. You type in your credentials, you see the loading wheel spin, and then—nothing. Just a stark error box.
If you are an admin, patch your RDP hosts. If you are an end-user, clear your Credential Manager. One of those two actions will resolve the issue 95% of the time. rdp error code 0x3 extended error code 0x7
