Subj : new wifi device crashes DSL
To   : All
From : August Abolins
Date : Mon Jul 23 2018 01:09:28

I am trying to help a friend solve an unusual problem were the DSL signal drops 
whenever a particular Win7 pc is booted up to join the network.

They have an ADB P.DG A4001N router/DSL modem.  They use it with an adapter for 
voip.  It also feeds a smart wi-fi TV.  They also have a small android tablet.  
All devices work fine (simultaneously), no problem.

But when they boot up their Win7 pc... using wi-fi, the DSL (and access to the 
internet for all existing devices) just drops.  The Win7 pc is able to 
join/login to the ADB router device fine, but fails to get internet access.

The DSL recovers after a few minutes after the Win7 pc has been turned off.

I tried connecting the Win7 pc directly via ethernet cable, and the same 
problem happens!

The Win7 pc TCP/IP is configured with "Obtain IP address automatically" and 
"Obtain DNS server automatically".   The TV seems to prefer to always use 
192.168.1.103.  The gateway/router is 192.168.1.1.

When I introduce my modest XP Thinkpad T60 via wi-fi (which is also configured 
with "Obtain IP address.. Obtain DNS server.. automatically) I get a succesful 
connection to the network/internet and the TV and tablet have internet access 
fine.

But as soon as the Win7 pc is fired up and "connects" to the ADB, the whole DSL 
feed drops for everyone.

Any ideas on what would be causing this problem?

Meanwhile, I configured the Win7 pc to use a specific IP address and the 
required gateway address.. but I haven't had a chance to test the pc on their 
home network.

....AA

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