Hello
I have a domain with 70 users, server 2012 DC with server 2012 secondary DC, internet connection is by web proxy of ISA Server 2004.
I cannot do nslookup or ping from any of DC or user comp. But there is normal internet connection!!!
C:\Windows\system32>nslookup google.com
Server: dc.energinst.am
Address: 192.168.1.1
DNS request timed out.
timeout was 2 seconds.
DNS request timed out.
timeout was 2 seconds.
*** Request to dc.energinst.am timed-out
....................................................................................................
C:\Windows\system32>ping www.google.com
Ping request could not find host www.google.com. Please check the name and try again.
I checked DNS and it is ok. It seems the only reason can be ISA, but I don't know ISA server and it is configured not by me. How can I check if ISA is blocking something?