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Hello, i am out of ideas, as the title says i simply cannot seem to get port 25734 opened in local Lan.
This is the setup:
Network: Unifi UDM Pro (All local traffic is allowed and also added the ports to allowed on all devices locally)
Server - Windows server 2019 (This server is also the DNS server for the network)
Client1 - Windows 10
Client2 - Windows 10
So ill try and explain as good as i can:
I have telnet installed and on Client2 the port is opened and i can telnet to it from all clients and the server aswell. I need to open the port on the server though and not on the client.
I have a listener shown in both netstat -a and also shown in the resource monitor where the port says allowed aswell.
On the server i have added exceptions in the firewall, i have added the exceptions in the antivirus (Bitdefender), i have disabled the firewall and antivirus and it still says filtered when checking the port and also telnet does not work to the server (The exact same settings with both firewall and antivirus active works when telnet to Client2 instead of the server).
I have 2 other ports opened the exact same way on the server and i can telnet to those from all the clients, but if i open a new port it will simply not open, even if i try another port.
I have tried to disable all i can think of and it still works like a charm to Client2 but the server refuses to let me in.
i need the port open for the solidworks license manager which we now have to run on a client instead of the server since i cannot get the port to open on the server.
Sorry if i am missing information here but tell me what information you need and ill provide it.
A Summary if i was unclear:
I want to telnet to port 25734 from all clients to the server.
I at the moment can telnet from all the clients and the server to Client2 on port 25734
I have the same listener installed on the server and Client2
I have the same settings in firewalls, antivirus and network on Client2 and the server (The same rules on opening and allowing both the port 25734 and the program that runs the listener)
I can telnet to localhost 25734 on the server without problems so the listener should be ok
In the resource manager it says the ports are allowed for communication and that its listening, netstat -a also shows that the server is listening on the port.
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Ok, new info, installing other applications on a domain controller isn't recommended. One option may be to install the hyper-v role (as only role) on host, then stand up two virtual machines. One for active directory domain services and another as the application server.
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Ok, can i do that on a basic 16 core license? Also is the performance of the server then 1/3rd per server easily split or is the CPU also dynamic as the ram can be?
i have disabled the firewall and antivirus and it still says filtered when checking the port and also telnet does not work to the server
Sounds like you'll need to reach out to the solidworks software vendor for support.
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Its just a listener (The exact same as installed on Client2 where it works), im trying to telnet to the server, it has nothing to do with solidworks more then the listener which works on Client2 where they put it since the ports are not open on the server.
I have tried setting a listener from powershell on the server but i still cannot telnet to the server, but to Client2 it works like a charm
The solidworks was just to explain why i need the port opened
Also i have talked to them and they say that they cannot do anything until the port is opened
There's no difference in the way the windows firewall works here. Since you have third-party firewall you could ask them for assistance as well, or stand up a new one (2019 fully patched OOB) for testing.
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ok i have now uninstalled everything related to bitdefender and just using windows defender, i have rebooted and i still have the same problem
Ok, well we have no idea here how cleanly that uninstall might be. You could try standing up a new 2019 patched fully for testing.
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i dont really have that option unfortunately, we only have license for the one server and are not using VM's, also im at a remote site so i dont have physical access to the server
Sounds good, the software vendor is going to be your best resource to trouble shoot this problem.
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