DLink DI-514 limited or no connectivity with speedstream 4100 modem

[DI_diamond]

hello gigs,
I have yahoo DSL service they gave me speedstream 4100 modem and Hooked it to wireless WAN port (D-Link router with 4 ports) and from one of the port it is going to packet8 (VOIP) router. and I wan unable to surf at all, but I was able to make phone calls.
I read at one of the forums "http://www.wirelessforums.org/ " and change the Ethernet cable from WAN to one of the port, I saw only limited connectivity.

In system event log I see this message.
"The IP address lease 192.168.88.100 for the Network Card with network address 00E07D001893 has been denied by the DHCP server 192.168.0.1 (The DHCP Server sent a DHCPNACK message). "

I have solid internet lights.

I like to know if anyone in this forum has successfully setup.
OS:win 2k
desktop
I badly need help...

 

[DI_diamond]

I was able to fix the problem.
The problem was with router and modem have same DHCP IP.

1. I connected my D-Link DI514 router LAN port to PC VIA cable(wired). Modify the LAN port from 192.168.0.1 --> 192.169.0.1 saved the new settings.
2. Connect the cable from Ethernet port of modem to WAN port on DI-514 router.
2. Then set PPPOE setting username/password.

And you ready to surf.