I have a RV042 setup as a VPN box. When it is first turned on I can access the box remotely perfectly (though I have not gotten a decent VPN connect) after about an hour suddenly the box just ignores all incoming connections from the outside, even pings. Internal connects are still allowed. Even went as far as to turn off all firewalling and such to test this issues. Firmware 18.104.22.168 I think. Its the latest from Linksys's site.