Hello Everyone,
I have 2 servers in environment which are not communicating with each other even they are in same domain and same subnet / network, however, they are communicating with other servers in environment. I am connecting to every server in environment from a jump server.
Example:
Server A (2008R2)
Server B (2012R2)
Ping from jump server is working on both.
RDP from jump server is working on both.
Ping from A to B gives RTO over hostname and IP
Ping from B to A gives RTO and host unreachable over hostname and IP
I bring a 3rd server in scenario for testing on same domain, network and subnet. Server C (2008R2)
Ping:
C to A - working
C to B - working
A to C - working
B to C - working
A to B - not working
B to A - not working
Telnet:
Telnet not installed on machine A,B,C.
RDP:
A to C - working
B to C - working
C to A - working
C to B - working
A to B - not working
B to A - not working
Network share:
A to C - working
B to C - working
C to A - working
C to B - working
A to B - not working
B to A - not working
Firewall:
Settings are same on all 3 servers including inbound and outbound traffic, with no exception.
Ports:
Port 3389 is listening on server A, B, C.
Any suggestion on this will will highly appreciated.