@smahurin On the QNAP server, I had not maintained the security list. I changed to allow all and now port Forwarding is working for those servers. THANK YOU !! The original problem was the LAN IP...

@smahurin I changed the mask to 255.255.255.0 and the Port forwarding addresses changed to the correct subnet (.1). I tested accessing one of the devices with both DDNS name and the current WAN IP of...

@smahurin I used "Use Client IP Address" and the device IP is still .1 subnet

Some time ago port forwarding was working. It stopped working and I couldn't determine why. Recently I found the Port Forwarding IP addresses for all the devices were 192.168.0.x instead of their...