jonathanztaub@yahoo.com wrote:
> * I have Windows XP SP2
> * D-Link wireless router with built in modem dsl-2640b
> * Sony Vaio with Intel 3945abg wireless card
> * I'm relatively computer savvy
> * AT&T is my ISP provider
>
> I can access the internet when hard wired to the router.
>
> Windows IP Configuration
>
> Host Name . . . . . . . . . . . . : jt-thesoftforge
> Primary Dns Suffix . . . . . . . :
> Node Type . . . . . . . . . . . . : Broadcast
> IP Routing Enabled. . . . . . . . : No
> WINS Proxy Enabled. . . . . . . . : No
>
> Ethernet adapter Local Area Connection:
>
> Connection-specific DNS Suffix . :
> Description . . . . . . . . . . . : Intel(R) PRO/100 VE
> Network Connection
> Physical Address. . . . . . . . . : 00-13-A9-47-40-0D
> Dhcp Enabled. . . . . . . . . . . : Yes
> Autoconfiguration Enabled . . . . : Yes
> IP Address. . . . . . . . . . . . : 76.237.8.247
> Subnet Mask . . . . . . . . . . . : 255.255.255.0
> Default Gateway . . . . . . . . . : 76.237.8.247
> DHCP Server . . . . . . . . . . . : 192.168.1.1
> DNS Servers . . . . . . . . . . . : 68.94.156.1
> 69.227.255.30
> Lease Obtained. . . . . . . . . . : Thursday, January 31, 2008
> 21:38:17
> Lease Expires . . . . . . . . . . : Thursday, January 31, 2008
> 21:38:47
>
> Ethernet adapter Bluetooth Network Connection:
>
> Media State . . . . . . . . . . . : Media disconnected
> Description . . . . . . . . . . . : Bluetooth Device (Personal
> Area Network)
> Physical Address. . . . . . . . . : 00-10-60-D0-0E-E8
>
> Ethernet adapter Wireless Network Connection:
>
> Media State . . . . . . . . . . . : Media disconnected
> Description . . . . . . . . . . . : Intel(R) PRO/Wireless
> 3945ABG Network Connection
> Physical Address. . . . . . . . . : 00-18-DE-09-C4-D4
>
> Please note that the default gateway is not the router.
> If I disconnect the wired connection and switch to wireless card, I
> will have internet access for a few minutes before the following
> settings will be applied to my wireless card:
>
> Windows IP Configuration
>
> Host Name . . . . . . . . . . . . : jt-thesoftforge
> Primary Dns Suffix . . . . . . . :
> Node Type . . . . . . . . . . . . : Broadcast
> IP Routing Enabled. . . . . . . . : No
> WINS Proxy Enabled. . . . . . . . : No
>
> Ethernet adapter Local Area Connection:
>
> Media State . . . . . . . . . . . : Media disconnected
> Description . . . . . . . . . . . : Intel(R) PRO/100 VE
> Network Connection
> Physical Address. . . . . . . . . : 00-13-A9-47-40-0D
>
> Ethernet adapter Bluetooth Network Connection:
>
> Media State . . . . . . . . . . . : Media disconnected
> Description . . . . . . . . . . . : Bluetooth Device (Personal
> Area Network)
> Physical Address. . . . . . . . . : 00-10-60-D0-0E-E8
>
> Ethernet adapter Wireless Network Connection:
>
> Connection-specific DNS Suffix . :
> Description . . . . . . . . . . . : Intel(R) PRO/Wireless
> 3945ABG Network Connection
> Physical Address. . . . . . . . . : 00-18-DE-09-C4-D4
> Dhcp Enabled. . . . . . . . . . . : Yes
> Autoconfiguration Enabled . . . . : Yes
> IP Address. . . . . . . . . . . . : 192.168.1.2
> Subnet Mask . . . . . . . . . . . : 255.255.255.0
> Default Gateway . . . . . . . . . : 192.168.1.1
> DHCP Server . . . . . . . . . . . : 192.168.1.1
> DNS Servers . . . . . . . . . . . : 128.9.0.107
> Lease Obtained. . . . . . . . . . : Thursday, January 31, 2008
> 21:46:43
> Lease Expires . . . . . . . . . . : Thursday, January 31, 2008
> 21:46:53
>
> Everything looks correct except the weird DNS ip address which I have
> no idea where is coming from.
>
> This network card is able to connect to other wireless routers. The
> router is not defective as I have replaced it and am still
> experiencing the same problem. Any attempt to override the automatic
> settings on the router or wireless card do not result in any success
> even if settings are identical to wired access which is working.
>
> I have disabled all possible firewalls and anti-virus programs as well
> as upgrading to the latest driver updates and trying to fix my
> winsock. I tried connecting two other laptops but no success (both of
> which happened to be Sony Vaio). I can access the router wirelessly
> but cannot access the internet nor ping any ip address including DNS
> with a success (aside from the router).
>
> I have a feeling that this is a hardware issue with my wireless
> network card which for some reason doesn't like the router. I've
> posted in other places though with more emphasis on the router rather
> than the wireless network card.
> I have been trying to troubleshoot this for many days now and am at
> the point of giving up and getting a different router/modem, though my
> curiosity currently keeps me at it.
>
> If anybody else experienced something like that, I'd appreciate any
> pointers.
What happens to the Config if you turn off the DHCP server in the 2640b?
Are you positive that NAT is enabled in the 2640b?