I have one E3000 running Tomato 1.28 in wireless AP mode and connected to the WAN modem, and a WRT54GS running Tomato 1.28 in wireless bridged mode. I can connect a laptop by wire to a WRT54GS port and it connects to the internet through the E3000, can see all other PC's and printers on the local network. When the xbox 360 is connected by wire to the WRT54GS, the <Test Xbox LIVE Connection> test fails, always with either "ICMP Error" or "MTU Error". "Respond to ICMP ping" is enabled on both routers. Ports 88 (UDP) and 3074 (UDP and TCP) are forwarded from the E3000 to the xbox IP address. The xbox MAC is used for static DHCP in the E3000 so the xbox always gets the same IP. The xbox is set to get its IP and gateway and DNS dynamically, and it does acquire the correct IP address for itself from the E3000 static table, the IP of the E3000 for its gateway, and two opendns IP's from the E3000 for its DNS. By the way, xbox <Test PC Connection> does list networked PC's. Any ideas what's wrong?