problem replacing dlink 604 (wired) router with wireless

Hi All
Equipment: dsl modem= Speedstream 5360
current router = Dlink 604 (Wired)
ISP = Sbc Yahoo DSL
Problem: when i remove the 604 and try to connect modem directly to PC
the PC cannot commumicate with internet. All lights on modem and nic
show connection and when i try to go to web page the activity lights
flash but i always get a "cannot find server" error message.
I discovered this problem when I tried to replace the 604 with a
wireless router and got same result. so i attempted to remove the
router (604) and just go dsl modem to PC. Before I installed the 604 I
had cable directly to pc from modem. however I have upgraded PC since
then.
I have attempted bypassing the 604 with both my laptop and desktop.
Same results on both.
I have tried 2 wireless routers and the direct connections method
mentioned above and the only way i can get on the inet is through the
604.
Any thoughts or suggestions would be appreciated.

BRC wrote:
> Hi All
> Equipment: dsl modem= Speedstream 5360
> current router = Dlink 604 (Wired)
> ISP = Sbc Yahoo DSL
> Problem: when i remove the 604 and try to connect modem directly to PC
> the PC cannot commumicate with internet. All lights on modem and nic
> show connection and when i try to go to web page the activity lights
> flash but i always get a "cannot find server" error message.
> I discovered this problem when I tried to replace the 604 with a
> wireless router and got same result. so i attempted to remove the
> router (604) and just go dsl modem to PC. Before I installed the 604 I
> had cable directly to pc from modem. however I have upgraded PC since
> then.
> I have attempted bypassing the 604 with both my laptop and desktop.
> Same results on both.
> I have tried 2 wireless routers and the direct connections method
> mentioned above and the only way i can get on the inet is through the
> 604.
> Any thoughts or suggestions would be appreciated.
>
Hi,
How do you get your IP? Fixed or auto?
Even if you renew the lease?
Tried ping anything?
What do you see when you issue a command ipconfig /all?