Won't connect to internet through router

I have 2 Dells with windows XP. I have used a router(WBR 1310)for several months but now suddenly one machine won't connect through the router. The other computer is fine. If I bypass the router to the modem (dsl300g) it connects to ADSL fine. I turned off my windows firewall and took off AVG, but it makes no difference. I tried a different ethernet card and it made no difference. I tried a different router and it made no diffeence. Same with cables. It shows connected to the router when I turn the router off and on and wait a minute or so, but on "status" there is no further information transfer. Attached are my IPconfig and ping records. The Dlink help line was pretty useless. Any suggestions. Microsoft Windows XP [Version 5.1.2600] (C) Copyright 1985-2001 Microsoft Corp. C:\Documents and Settings\brian>ipconfig/all Windows IP Configuration Host Name . . . . . . . . . . . . : DOWNSTAIRS Primary Dns Suffix . . . . . . . : Node Type . . . . . . . . . . . . : Hybrid IP Routing Enabled. . . . . . . . : No WINS Proxy Enabled. . . . . . . . : No Ethernet adapter Local Area Connection 3: Connection-specific DNS Suffix . : Description . . . . . . . . . . . : Realtek RTL8139 Family PCI Fast Ethe rnet NIC Physical Address. . . . . . . . . : 00-05-5D-D1-A7-7B Dhcp Enabled. . . . . . . . . . . : Yes Autoconfiguration Enabled . . . . : Yes IP Address. . . . . . . . . . . . : 192.168.0.101 Subnet Mask . . . . . . . . . . . : 255.255.255.0 Default Gateway . . . . . . . . . : 192.168.0.1 DHCP Server . . . . . . . . . . . : 192.168.0.1 DNS Servers . . . . . . . . . . . : 192.168.0.1 Lease Obtained. . . . . . . . . . : March 18, 2007 8:28:08 PM Lease Expires . . . . . . . . . . : March 25, 2007 8:28:08 PM C:\Documents and Settings\brian>ping 192.168.0.101 Pinging 192.168.0.101 with 32 bytes of data: Reply from 192.168.0.101: bytes=32 time1ms TTL=128 Reply from 192.168.0.101: bytes=32 time1ms TTL=128 Reply from 192.168.0.101: bytes=32 time1ms TTL=128 Reply from 192.168.0.101: bytes=32 time1ms TTL=128 Ping statistics for 192.168.0.101: Packets: Sent = 4, Received = 4, Lost = 0 (0% loss), Approximate round trip times in milli-seconds: Minimum = 0ms, Maximum = 0ms, Average = 0ms C:\Documents and Settings\brian>ping 192.168.0.1 Pinging 192.168.0.1 with 32 bytes of data: Request timed out. Request timed out. Request timed out. Request timed out. Ping statistics for 192.168.0.1: Packets: Sent = 4, Received = 0, Lost = 4 (100% loss), C:\Documents and Settings\brian>