VS30063: You are not authorized to access

So. I've just installed Visual Studio 2015 Update 3 (VS2015.3) and I'm getting this in the output window at startup:

We were unable to automatically populate your Visual Studio Team Services accounts. The following error was encountered:
VS30063: You are not authorized to access https://app.vssps.visualstudio.com.

What I had to was re-login.

In the top right corner of Visual Studio, I found a yellow warning triangle next to the place for my name. I clicked the down arrow and then the "Relogin" message.

After I restarted Visual Studio and signed back in, the error was gone.