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Forum Discussion
All port forwarding has suddenly stopped working
The model of my router is WNR3500Lv2. I'm using the latest firmware, V1.2.0.48_40.0.88. I run several applications on a home "server" that I connect to remotely. Everything has always worked fine...
> [...] WNR3500Lv2. [...] V1.2.0.48_40.0.88.
So, not really a "Cable Modems & Routers" question.
> I run several applications on a home "server" [...]
What is its IP address? What are your port-forwarding rules?
> I can connect to everything fine from my LAN, [...]
Using the IP address in the port-forwarding rules?
> [...] from my work computer I tried to connect to my FTP server using
> my DNS name, and it tells me the connection was refused.
"Connection refused" normally means that the remote device (probably
the router) was reached, but no one was listening at the specified port.
> [...] At home, I can connect to it fine using my local IP address.
Can you access these services from a system on your LAN specifying
your public IP address instead of the server's LAN IP address?
> [...] Can anyone think of anything else to try?
Reboot the router?
The server IP address is 192.168.1.150. I typically forward ports by choosing the service type of TCP/UDP and set internal and external start and end port to be the one in question - for example, 3389 for RDP. While I'm at home, I can RDP fine if I connect to 192.168.1.150, but if I try to use my public IP address, it doesn't connect. But I can scan those ports from port scanning websites and it will tell me the ports are blocked, so I would expect that. So the "connection refused" error makes sense if the port is blocked, but I just don't know why they all appear to be blocked all of the sudden when I've always had them open and everything has worked up until yesterday.
I've rebooted my router multiple times.