i haven't tried in router mode yet, but in Home Gateway both setting a static ip or getting it from a dhcp server the wan port dies. Everything else works, it's only the the WAN that stops responding. And there is nothing in the logs.
Another thing is that if i do not download files, only surf around then there is no problem. But when i start to download files the WAN port stops responding after some time. (Last time i tested i downloaded 3 files (15MB each) with no problem, but when i started on the 4 one, the wan port died. Did only get 4400kb/s from a server i usualy get 100MB from)

(When the WAN port is dead i mean that i have lost all connections from outside ).