How to open TCP Port on my RV220 Firewall router?

Hello,
I have a windows 8 server for a LAN. This has a Cisco RV220W Firewall which is connected to the T1 router. In order to host a 3rd party video conferencing software I need to have the TCP 1935 port open.
I tried the following -
1. Logged into my RV220W and added a rule using Manage Firewall Rules (Firewall-Access Control-Custome Services). Here I added a rule for TCP start port 1935 and Finish port 1935.
2. Then I added an inbound rule on my Windows 8 server to open TCP 1935.
However when I tested it using porttest.net, it said TCP 1935 is still closed. Can someone please let me know how can I open TCP 1935 port?
Thanks,
Abhi

Hello
your steps seems to be fine at first look, but somewhere in that chain there is probably something broken.
what kind of service is on that server port?
are you able to open connection from outside with telnet to Router WAN IP and port? example test from outside/internet:
telnet X.X.X.X YYYY
where X.X.X.X is WAN IP of Router and YYYY is port number.
You can confirm that port forwarding is working on both devices:
you can try to connect with computer between Router and Firewall and try that port on firewall.
if previous test works, then for testing purposes move server to subnet between Router and Firewall and perform connectivity test from internet.

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