@Ivaylo Oh.. Thanks a lot. That did the trick.

I made a simple port forwarding rule where I expect the WAN ports from 8080 to 8082 to be forwarded to the same port numbers on a LAN IP address: Advanced -> NAT Forwarding -> Virtual Servers...

@Sunshine Thank you for answering my post. 1. I changed "Network", "LAN Settings", "DHCP Server", "Subnet Mask" from "255.255.255.0" to Custom: "255.255.252.0". Then the router rebooted and worked...

Although I have 7 Wireless Clients and 8 Wired Clients connected, all Client Lists are empty. This happened suddenly after changing some settings. I used to have the lists populated with all clients...