I got a new DLink DIR-615 routeur. DSL model connects fine. Connected PCs connects to the internet fine (wireless, wired) fine too. After ~3 minutes, connected PCs cannot go to the internet. Web pages goes timeout, sometimes google talk stays on (working). From the router admin page, pings works correctly (on google.ca), so the connection is active.
pc --> routeur --> internet: fail
pc --> router: ok
router --> internet: ok
could it be firewall related? I've read there's a SPI firewall enabled.