Cant Add or Delete Port forwarding issue solved.

Background:
7 Months ago when you could add and delete port forwarding entries, it had this strange issue. It would say the device is 10.0.0.24 but the forwarding entry would send the traffic to 10.0.0.25. Some glitch added +1 to the IP address. I solved this but manually setting my PC ip address up one number. Went through 3 months of bizarre DNS issues, 3 routers, and countless calls. Now I cannot add, change, or delete my port forwarding entry.

I do remote production and use USB over IP systems for camera and lighting control. So, this has been a massive issue for me. Fix 1 may work for most but the specific application I'm using doesn't use UPnP. Fix 2 was my ultimate solution. My PC is the server, and the remote PC is the client. But in order to trigger that port I have to open BOTH the client, and the server app on my PC. Running the client kicks the door open and allows the remote client to come back in through the router. Then I close the client app on my PC and proceed as normal.

Your router acts as a firewall, only letting specific things in and out. For many applications to work, they need a specific "door" or port, to go in and out of the PC. UPnP allows applications to automatically tell the router which ports to open and close. Port Triggering is effectively the same thing, but instead of telling the router which port to open, and where to send the traffic, it says, "If anything goes out of this port, data can be allowed into it while its open."

Fix 1 - Enable UPnP
Step 1) Log into the router (normally 10.0.0.1) Under "Advanced" navigate to "Device Discovery."
Step 2) Make sure your settings look exactly like this.

Fix 2 - Port Triggering

1. Log into the router (normally 10.0.0.1) Under "Advanced" navigate to "Port Triggering."
2. Add the entry like you would a normal forwarding.

3. Run both the client, and server to open the connection, then close which ever one you don't need.