I have a Windows 2012 Server (on Windows Azure), with AD Controller and DNS on it. Next to that, I have another machine, who is domain joined.
Now I can ping from the AD controller to that other machine using the FQN:
C:\Users\Alexander>ping exsertuscdtest.exsertuscd.local Pinging exsertuscdtest.exsertuscd.local [10.0.0.5] with 32 bytes of data: Reply from 10.0.0.5: bytes=32 time=1ms TTL=125 Reply from 10.0.0.5: bytes=32 time<1ms TTL=125 Reply from 10.0.0.5: bytes=32 time<1ms TTL=125 Reply from 10.0.0.5: bytes=32 time<1ms TTL=125 Ping statistics for 10.0.0.5: Packets: Sent = 4, Received = 4, Lost = 0 (0% loss), Approximate round trip times in milli-seconds: Minimum = 0ms, Maximum = 1ms, Average = 0ms
So, no problem here. But after a while (like 20 minutes), I'm not able to ping anymore:
C:\Users\Alexander>ping exsertuscdtest.exsertuscd.local Ping request could not find host exsertuscdtest.exsertuscd.local. Please check t he name and try again.
Ping with IP address works without any problem. The only thing that helps is:
C:\Users\Alexander>net stop dnscache The DNS Client service is stopping. The DNS Client service was stopped successfully. C:\Users\Alexander>net start dnscache The DNS Client service is starting. The DNS Client service was started successfully.
I can then ping the machine again using the FQDN. There is no error/warning in event log or whatsoever.. I have no clue what is happening?