Windows – Cannot join domain from different subnet

active-directorydomaindomain-name-systemwindowswindows-server-2008-r2

This is the first time I have encountered such a strange problem. I am not able to join my machines with domain.

Here are details.

Subnets:
192.168.1.0/24
192.168.2.0/24

both subnets can successfully ping each other. Routing is symmetric.

Domain: corpltd.com
DC: 192.168.1.1
Members Machines: 192.168.1.10 to 15

I can ping DC from my 192.168.2.0/24 subnet. Even though I can telnet to port 53 but I cant resolve any name. I was getting 2 Second Request Timeout. I tried all the technet troubleshooting documents relating to DNS Resolution problem but none was good in my fate.

Later I got to know that I can telnet to IIS port 192.168.1.5:80 but cant access to IIS Website and I can telnet ftp 192.168.1.7:21 but cant access to ftp from 192.168.2.0/24 subnet.

When I unjoined the 1.7 and 1.5 machines from the domain corpltd.com I was able to access every services running on 1.7 and 1.5 from 192.168.2.0/24 subnet.

After deep investigation It was concluded that services running on machines of 192.168.1.0/24 subnet that are domain-joined are inaccessible from other subnet. If I unjoin them from domain, I was able to access services from different subnet.

I am thinking that my Domain Controller has such configurations that is not allowing other subnets to access services of domain joined machines. looking forward for your help.

PS : There is no firewall running in my environment.

Best Answer

You cannot because they are different networks, you can only if you add a router to forward each network to another and then pc of the first network will find the server of the second network.

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