Port forwarding not working
Until recently, I had forwarded port 6100 on my 3801HGV U-Verse router. It worked fine. I needed to change my settings and forward a different port, but now the ports wont forward.
Under Settings > Firewall > Status it shows that the proper port is forwarded, but all outside applications (including canyouseeme.org) shows the port is not forwarded and times out.
I've tried switching back to the original setup, changing ports, etc. and it still shows that the port is not forwarded.