My thoughts (if you can't find any relvent info) is to run a test with
InstallRite to see what changes the AT&T software actually makes. This may
give you a better idea where the problem lies.
http://www.epsilonsquared.com
Anoter useful tool might be LSPFix, which can identify any 'impostor' TCP/IP
stack components.
http://www.cexx.org/lspfix.htm
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"Our goal is to ensure that the migration process from Windows Vista to
Windows 7 is straightforward." For the two people using it.
"ebay.ntailoring@gmail.com" wrote:
> I've been seeing a problem lately on many systems in our repair shop
> where DHCP does not work on Windows XP computers. This happends on
> wired and wireless connections. It seems like it may be related to
> PPOE clients that are installed by internet services like AT&T.
>
> I can usually solve these issues by re-installing windows or using a
> static IP address. Could there be another solution to these problems?
> Is there a way of re-setting the networking to windows defaults?
>