David,
Even if u have a fixed IP address from your provider, you have to place a router in between tenor and DSL modem, I would not have explained it better than noname, but this was the reason I told you from the start to place a router, a DLINK, linksys both work fine and great… and by the way just to confirm, even if u enable DHCP in tenor, will not allow you to acquire the IP address in A800, u still need a device(router)to sign w/PPPOE to you provider…that’s it, no other fix except this….
Hwyking