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Forum Discussion
Solved
Port Forwarding Problem
Hi everyone,
I am having trouble with port forwarding on my Netgear Nighthawk X8 (R8500) wireless router. It is currently running the latest firmware version (1.0.2.94). I have a Cisco 7960 IP telephone running SIP firmware that I am trying to use with a VoIP provider. I can send calls with no problem, but I cannot receive incoming calls. I used a softphone to narrow the issue and have found that it has something to do with my setup so it lead me to port forwarding. I created a port forwarding rule for port 5060 which is the correct port for the service I am trying to use. My ISP doesn't block this port. I also assigned the phone a static IP address before I created the port forwarding rule. The rule is using UDP and not TCP since VoIP uses UDP. I am still not able to receive calls, and I checked to see if this port is open by using multiple port checking websites. They all indicated the port is closed. I already tried rebooted the router. I am not sure what else I can do.
I performed a test using my computer with a softphone to see if the port forwarding was working at all and it did in fact work. So at this point, it looks like it is the IP telephone that is the problem. According to the configuration, it is listening on port 5060, but for some reason it is not passing the port test. At least I know at this point that the port forwarding rules in general are working.
7 Replies
Is your Nighthawk connected to a modem or a modem/router?
It is connected to an Arris SB6141 modem only device. This modem is mine and not supplied to me by the ISP.
Ok. Are you sure that port 5060 is the only port that needs to be forwarded and that only UDP? Try forwarding both TCP and UDP.
You can also try toggling the SIG ALG setting in WAN Setup.
