Without any change (except Windows Updates), one of my stand alone W2K8 R2 servers has become unconnectable from Remote Desktop (Win 7). RDP gets stuck on 'Securing Remote Connection' and just never completes.
I can however connect to the same server using a 3rd party RDP client - Royal TS - which allows me to specifically disable Network Level Authentication. Connecting with NLA enabled in Royal TS exhibits the same problem as Win7 RDP client.
The W2K8 R2 server is configured to allow non NLA RDP sessions. Not a member of a domain, not a DNS server, etc. It's a standalone web server.
So, my question is what could cause RDP to fail like this with no other changes?
UPDATE In a bizarre twist, the problem has magically resolved itself with no changes on either end.
I have a suspicion there may have been some kind of DNS issue within the hosting center - based on comments I've found through google from others experiencing similar kinds of problems.