@Kevin_Z This is definitely a bug in the router firmware. I recreated the exact same setup using Ubiquiti EdgeRouter X and it works without a hitch. Will be returning the Archer and ask for a refund.

@Kevin_Z Confirmed that when accessing the server via ISP router's network that I cannot access the server (getting timeouts) in the Archer's network using the Archer's WAN IP.

@Kevin_Z I tried setting the server IP address to 10.0.0.x but the same error persists (nothing gets forwarded and the log message about the IP not being in the same lan subnet appears). A. Access...

Hi @Kevin_Z The network diagram is as follows: Internet -> ISP Router (192.168.0.1/24, external IP acquired from ISP, 192.168.0.2 set as DMZ) -> Archer C9 (10.0.0.1/8, 192.168.0.2 WAN IP) -> Server...

Hi, I am having an unusual issue with Archer C7 that is behind an ISP's router when trying to set up the port forwarding. The ISP's router is in 192.168.0.0/24 network and has DMZ set to 192.168.0.2...