Using RDP to each serve in our development farm, we encountered suddenly following error:
We can still get RDP to the machine using it’s IP address, but not using the machine name – even not fully qualified with domain name etc.
The reason is the difference in time settings:
time settings at the target machine:
time settings at the machine with RDP client:
20 minutes difference caused the difference. After the time was synchronized, we were able to connect the target machine again.
Also a centralized time synchronization across the farm may be used to avoid the problem.
UPD: the problem seems to be known and mentioned at