WLAN problems after patches from 1/8/2008 (KB941644??)

Hi,
after installing the updates from patch day 1/8/2008, I have encountered the
following WLAN problems: My WLAN card (Intel Pro 2200BG/2195) was unable to
get a dynamic ip address from my router. Even after assigning a static ip
address, the WLAN did not work. I had a connection to the router, but tcp
simply did not work.

I restored to a previous installation point and then WLAN was functional
again.
Has anybody experienced similar problems? I supect that KB941644 causes
these problems. How can I avoid this...and install KB941644 without getting
problems?

Best regards,
Andreas