lost wireless connection after McAfee uninstall



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.

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.

Ask a Question

Want to reply to this thread or ask your own question?

You'll need to choose a username for the site, which only take a couple of moments. After that, you can post your question and our members will help you out.

Ask a Question