If you need to open a lot of ports, why not try DMZ, which can open all ports? Virtual server doesn't support to add multiple ports in one rule.

@Semaj26 300 -- 500. When you calculate the client number, IoT devices can be ignored, because they produce a little traffic.

@Master_of_Mouse Can you share which firmware you upgraded?

You can connect to EAP's Wi-Fi and try tplinkeap.net. If it doesn't work, you can also try its static IP 192.168.0.254. In this case, you need to disconnect the router, and plug a laptop directly to...

You may have a newer laptop to do comparison test, so that you can figure out the issue is on your laptop or on EAP.

I'm curious about how far is your camera