I have the oddest problem with my DI-624. First, my network configuration. Comcast / Adelphia cable modem, connected to an RPL300 (Linksys) router, which is from Vonage. I have two wired computers connected to it. I also have the 624 connected to it via the LAN1 port on the 624 router.
WEP encrption is enabled with a shared key. The wireless computers are both laptops; one uses a DWL-G650, the other some Belkin G adapter. Both computers connect fine to the network; I can remote desktop to the wired computers, browse internal file shares.
The problem is that I cannot browse any internet web sites, although I can browse my internal web sites (SharePoint server) just fine. FireFox hangs at connecting to site... and after some time says the site took to long to respond.
I can ping and nslookupjust fine, but neither browsing to google via domain name or IP address work (the wired computers have no problems).