limited connectivity for wireless internet

[aaskl]

Hi everyone,

I've recently done some updating via windows update on 20th March 2010. However after the update, I only get limited access to the internet, I can't even connect to my router.I can access to internet again if I switch off my router, but if I reset my computer, I get limited connectivity again.

Computer: Dell Studio xps Windows Vista Home Premium SP1
Wireless card: Dell Wireless 1515 Wireless-N Adapter


Updates that were installed:
KB971468
KB979771
KB976662
KB975561
KB979396
KB905866
KB978474
KB977165
KB978262
KB890830
KB979099
KB974145
KB976881
KB973917
KB975560
KB978251
KB975929

I've tried uninstalling all these updates but nothing seems to help. I've also tried reinstalling the wireless driver but it only made matters worse. Now when I restart, the windows logo is missing with only the green bar moving left and right.

Now there are all those WAN Miniport in the Device Manager which weren't there before but I can't seem to remove them.

What can I do? I've got 2 Windows XP computer and they connect to the wireless internet fine.

Please help me.

Thanks

[Mulreay]

Just to start 'if you can' update to Win Vista sp2

[talontromper]

Have you tried using Windows Vista system restore? if not type in system restore into the search bar and restore the systemm to a restore point BEFORE you had installed the afore mentioned updates

[aaskl]

Firstly, i have installed SP2 but he same problem exists.

I have reinstalled the system restore points before the installation. But the problem exists. However I was quite sure that it only started having trouble after i installed the updates.

What else can I do apart from reinstalling the computer?

thanks