Not me.

No, as I had installed Office 2010 to try that. However, given that's not working, either, I might as well put it 2016 back on and I'll update to that.

Another update: I can confirm that whatever is causing the issue is appearing to forget my credentials.

We have an intranet website that authenticates off of each user's current windows...

Some more info on this, from my perspective:

Yesterday I uninstalled Office 2016 and installed Office 2010 and patched that, but still got the issue this morning.

I got the issue after...

No, Exchange 2010.

I've been on the slow ring of Win 10 since the Insiders program started and have used the 2016 Office Preview ever since it was released (or the day after that) and haven't had...

I've also started notice this happening to me as well. It started on build 10162.

bcrazy, are you also running Office 2016 Preview as well? I don't know if it's the cause, but I had no failed...