Solved Static IP not Resolving to Internal IP

[Arthur Siu]

My setup should be correct, because this was working for two months. The firewall checker show green across the board and I have the ports forwarded and access rules in my firewall, as well a SIP ALG disabled. But for some reason 2 weeks ago, when I punch in my static IP:5001, it no longer connects to my 3CX installation. Of course this means the FDQN doesn't work either, though it's not the FDQN fault. Any ideas what's going on? I tried restarting my 3CX server as well as stopping and starting the services, but still no dice. I haven't changed my firewall/port forwarding rules at all as well.

 

[YiannisH_3CX]

Hello @Arthur Siu

If you perform an nslookup to your FQDN does it resolve to the correct ip? Could it be that your public IP changed ? Is anything else running on port 5001?

 

[Arthur Siu]

Yeah NS lookup is correct and my public IP hasn't changed. Interestingly enough, Chrome Remote Desktop doesn't work either.

BTW, I have a second installation whose FDQN and Public IP aren't working too. Funny thing is there is a service listening on port 5001 at that static IP address

 

[Arthur Siu]

Okay it works now out of nowhere. No idea why that is but great.

 

[YiannisH_3CX]

Glad to see the issue is now resolved. Keep and eye on it and let us know if it happens again.