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Discussion Starter · #1 ·
I have a desktop (xp) that is connected to DSL, directly to the modem. It cannot obtain an IP from the telco. The NIC is set to obtain IP and DNS automatically. Installing a new NIC makes no difference. It reports it is connected, but with an IP of 0.0.0.0.

If I connect another computer to the same modem, it will obtain an IP correctly. I set that IP and DNS info manually into the original computer and it is now connected fine. This is only a temporary fix as sooner or later the ISP will change the IP to that account.

I ran a winsockfix also. What could cause this system to not obtain an IP but once past that problem, connects fine?

Thanks
 

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Sr. Tech, TSF Team Emeritus Microsoft Support Staf
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Hi unc417. Have you tried replacing the cord that goes from your modem to the PC? If you have try this.

Go to Start > Run and type CMD - click OK

In the command prompt window that opens, type the following commands, each followed by the Enter key:

Reset TCP/IP stack to installation defaults, type: netsh int ip reset reset.log


Reboot your PC.
 

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The ISP is serializing the connection based on the mac address of the laptop. This is why one works and the other does not.

Solution is to put in a router and clone the working laptops mac address to the wan interface basically fooling the serialization into thinking its only that working laptop that is connected
 
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