Hello everyone, I am glad to join your community. I would like to ask for your help about my tomato router (WRT54GS.) The problem I am having is that when I open (and forward) a port that is above 899 then that port is not accessible from the internet. That is whether I forward the port manually or through UPnP. It is accessible from the same PC though. I have not tested from another PC on the same LAN but my guess is that it will still be working. I am using Ubuntu and Windows 7. Both of them have that problem, that leads me to believe that the problem is with the router. Still, I can not find any setting that would change that behavior. I used deluge (torrent client) and an "echo server" to open the ports and this online port scanner. Thank you in advance. EDIT: By the way, could this be from my ISP?