lost wireless connection after McAfee uninstall

  • Thread starter Thread starter Nil
  • Start date Start date
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Nil

I'm trying to set up a wireless network for my friend. I got him a
D-Link DR-614 wireless N router/firewall and a Trendnet TEW-644UB
USB wireless N network adapter for his Compaq Presario 900 laptop.
I'm having trouble with that wireless connection.

I installed the adapter and things seemed to work as expected - it
connected to the router, obtained an IP address, and accessed the
internet. Should have left it at that... He had an old version of
McAfee's security (anti-virus/firewall) suite, obtained from AOL, I
think. It had long ago expired so I decided to uninstall it and
install Avast's free antivirus product. The uninstall seemed to go
OK, but ever since, the computer can't get a DHCP address or an
internet connection. The router's status page shows the computer
listed by MAC address, but with no IP address, so there is obviously
at least partial communication.

The laptop's wired ethernet connection works as expected. Oddly,
when it's connected with the wire, the wireless connection comes
fully to life, acquires an address, and works as expected. The wire
can be disconnected and the wireless connection continues to work
until the computer is restarted.

Just before I uninstalled the McAfee products I also installed XP
SP3 and a bunch of security updates, so those might be factors as
well, although the computer seemed to work OK at that point.

Not having his old version of the McAffee suite, I just installed
the latest version, hoping that the wireless connection might come
back, and that the suite might now uninstall cleanly. The wireless
connection is still half-dead.

I have tried deleting the wireless device so Windows would re-detect
it, but no improvement.

The wireless adapter works fine in another laptop. The router
accepts wireless connections from another laptop as expected.

Any suggestions? I'm stumped.
 
Had you not reinstalled McAfee I would recommend a first step of running the
McAfee clean up tool. You may still end up needing to do so.
http://service.mcafee.com/FAQDocument.aspx...033&id=TS100507

Try this first - in a command prompt run "netsh winsock reset"
Try this second - running LSPFIx from http://www.cexx.org/lspfix.htm
If still a problem, try the McAfee clean up tool, but note it will remove
the current version.
--

"Nil" wrote in message
news:Xns9C7E7BEDC4BE9nilch1@188.40.43.213...
> I'm trying to set up a wireless network for my friend. I got him a
> D-Link DR-614 wireless N router/firewall and a Trendnet TEW-644UB
> USB wireless N network adapter for his Compaq Presario 900 laptop.
> I'm having trouble with that wireless connection.
>
> I installed the adapter and things seemed to work as expected - it
> connected to the router, obtained an IP address, and accessed the
> internet. Should have left it at that... He had an old version of
> McAfee's security (anti-virus/firewall) suite, obtained from AOL, I
> think. It had long ago expired so I decided to uninstall it and
> install Avast's free antivirus product. The uninstall seemed to go
> OK, but ever since, the computer can't get a DHCP address or an
> internet connection. The router's status page shows the computer
> listed by MAC address, but with no IP address, so there is obviously
> at least partial communication.
>
> The laptop's wired ethernet connection works as expected. Oddly,
> when it's connected with the wire, the wireless connection comes
> fully to life, acquires an address, and works as expected. The wire
> can be disconnected and the wireless connection continues to work
> until the computer is restarted.
>
> Just before I uninstalled the McAfee products I also installed XP
> SP3 and a bunch of security updates, so those might be factors as
> well, although the computer seemed to work OK at that point.
>
> Not having his old version of the McAffee suite, I just installed
> the latest version, hoping that the wireless connection might come
> back, and that the suite might now uninstall cleanly. The wireless
> connection is still half-dead.
>
> I have tried deleting the wireless device so Windows would re-detect
> it, but no improvement.
>
> The wireless adapter works fine in another laptop. The router
> accepts wireless connections from another laptop as expected.
>
> Any suggestions? I'm stumped.
 
On 06 Sep 2009, "GTS" wrote in
microsoft.public.windows.networking.wireless:

> Had you not reinstalled McAfee I would recommend a first step of
> running the McAfee clean up tool. You may still end up needing to
> do so.
> http://service.mcafee.com/FAQDocument.aspx...033&id=TS100507
>
> Try this first - in a command prompt run "netsh winsock reset"
> Try this second - running LSPFIx from
> http://www.cexx.org/lspfix.htm If still a problem, try the McAfee
> clean up tool, but note it will remove the current version.

I will try that and report back. In the end, I want McAfee gone. The
re-install was just a recovery attempt.
 
Hi
Maybe this can Help, http://www.ezlan.net/clean.html#refreshnet
Otherwise you probably need to Refresh the WinXP OS installation.
Jack (MS, MVP-Networking).

"Nil" wrote in message
news:Xns9C7E7BEDC4BE9nilch1@188.40.43.213...
> I'm trying to set up a wireless network for my friend. I got him a
> D-Link DR-614 wireless N router/firewall and a Trendnet TEW-644UB
> USB wireless N network adapter for his Compaq Presario 900 laptop.
> I'm having trouble with that wireless connection.
>
> I installed the adapter and things seemed to work as expected - it
> connected to the router, obtained an IP address, and accessed the
> internet. Should have left it at that... He had an old version of
> McAfee's security (anti-virus/firewall) suite, obtained from AOL, I
> think. It had long ago expired so I decided to uninstall it and
> install Avast's free antivirus product. The uninstall seemed to go
> OK, but ever since, the computer can't get a DHCP address or an
> internet connection. The router's status page shows the computer
> listed by MAC address, but with no IP address, so there is obviously
> at least partial communication.
>
> The laptop's wired ethernet connection works as expected. Oddly,
> when it's connected with the wire, the wireless connection comes
> fully to life, acquires an address, and works as expected. The wire
> can be disconnected and the wireless connection continues to work
> until the computer is restarted.
>
> Just before I uninstalled the McAfee products I also installed XP
> SP3 and a bunch of security updates, so those might be factors as
> well, although the computer seemed to work OK at that point.
>
> Not having his old version of the McAffee suite, I just installed
> the latest version, hoping that the wireless connection might come
> back, and that the suite might now uninstall cleanly. The wireless
> connection is still half-dead.
>
> I have tried deleting the wireless device so Windows would re-detect
> it, but no improvement.
>
> The wireless adapter works fine in another laptop. The router
> accepts wireless connections from another laptop as expected.
>
> Any suggestions? I'm stumped.
 
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