Peter,
I've gone through the list and made all the recommended changes or found 
them set as you suggest with no fix.  I have a laptop of my own and tried 
that.  Using ipconfig, I can see my laptop returns an IP address for both 
the NIC and the WiFi  which are consistent with my desktop IP address, 
192.168.1.142 or similar.

The malfunctioning laptop shows a similar address for the WiFi, but a 
169.###.###.### address presumably because it can't get an address from the 
DHCP.   I'm thinking the problem is hardware in the NIC at this point.  If 
so I'll have to set her up with the wireless connection.

Bob

--------------------------------------------------
From: "Peter Ekkerman" <[log in to unmask]>
Sent: Saturday, July 30, 2011 12:51 PM
To: <[log in to unmask]>
Subject: Re: [PCBUILD] LAN problem

> Hi Bob,
>
> It doesn't look like there is a problem with the jack on the laptop, 
> because
> that is sometimes a cause of this problem as well.
> Try the following: Disable the wireless adapter and then make sure that 
> you
> use
> the "wired" adapter (NIC) in the laptop.
> Set it up using DHCP ,it should automatically acquire an IP address from 
> the
> router.
>
> Network connections folder - r-c on the LAN connection > Properties >
> (BTW, the LAN connection should already show the adapter used in the 
> Device
> column)
>
> Under the General tab ,make sure the correct adapter is selected.
> In the list below ,make sure Internet Protocol is ticked and then select 
> it.
> Then select Properties and in the resulting panel ,tick "Obtain an IP
> address automatically"
> which means that you're using the DHCP server.
> This is all standard IP config
>
> In Services ,make sure that DHCP Client is started and set to auto.
> In Device Manager ,make sure that the adapter is present and enabled.
>
> Showing LAN4 only means that there have been 3 previous LAN setups.
> Windows has the peculiar notion that a new LAN number should be assigned
> each time you change the settings.
> Just rename it (take the 4 off )
>
> You could also try this free Network Manager:
> http://www.netsetman.com/index.php?s=nsm
>
> Hope this helped .
> Peter E.
 

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