Server 2012 R2 Telnet on any port

Let me first get the infrastructure out of the way.
We have one 2012 R2 Server acting as the Hyper V host for 2 servers. The two virtual machines is one 2012 R2 Server and one 2003 SBS server that we did a P2V on.
Now here lies the problem, a third party application was installed by it's vendor and it needs to connect to port 7172 on their IP to activate the licence. I have opened the port on the firewall and I am able to telnet to that port from the 2003 VM, however
I cannot Telnet or connect to their IP on port 7172 from either the 2012 R2 VM or the 2012 R2 Hyper V host.
I thought it was something to do with Hyper V, but since it does not work from the Hyper V host, I suspect Hyper V has nothing to do with this but rather Server 2012.
Telnet client feature is installed on both 2012 machines.
Any thoughts welcome!

hi Sakkie, have you check whether the port is listening?
go to command prompt type:
netstat -ano | find "7172"
if the results shows established or listening then it should be good.
if you are not able to telnet to that port, i suspect that vendor's application has been set to reject telnet connection.
Some application rejects telnet connection for security reasons.
Every second counts..make use of it. Disclaimer: This posting is provided AS IS with no warranties or guarantees and confers no rights.
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Hello,
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Hi,
There are at least two options that can be used to allow replication when there are network traffic filters (aka firewall) in the network, across two DCs:
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Please Note: Since the web site is not hosted by Microsoft, the link may change without notice. Microsoft does not guarantee the accuracy of this information.
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Hi,
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Hi
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It's been suggested (in this thread):
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Hi Brian,
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Hi,
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Hi,
Thanks for your posting in Windows Server Forum.
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What Port Monitor just so I can bubble this information to some others?
Alan Morris Windows Printing Team
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Hi clw,
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Sofiya Li
Sofiya Li
TechNet Community Support

Server 2012 R2 Telnet on any port

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