I ran in to this problem as well when I was beta testing Vista and then when it was officially release. I called Microsoft and after 4hrs on the phone we came up with a fix. You have to edit the registry, so go to regedit.

HKey_Local_Machine\System\CurrentControlSet\Servic es\Tcpip

Highlight the Parameters folder and add a new Key.
The key has to be DWORD, name the Key ARPRetryCount, and set the value to 0.

That should get the machine connected to the domain and allow you to add all domain assets to your local security listings.

Greg

I have a similar problem as the OP. Everex laptop running Vista Home Premium. In the last couple of months, whenever IE7 decides it doesn't like a webpage (certain ebay pages for instance), IE7 may or may not crash, but in either case I lose my wireless network and I can't reconnect ("windows cannot find any wireless network"). I have to reboot the computer to get my wireless network back. If IE7 doesn't encounter a problem webpage, I can stay connected all day. (IE6 on my XP machine has no problem with the same webpages BTW).

So... as far as I can tell, there's some BUG in Vista re: IE7 and wireless networking.

I kind of have a similar issue too with the Dell laptop I just bought. I don't have a problem with disconnecting so much as if I intentionally disconnect I can't re-connect to anything. No networks show up in the list and when I goto the device manager it says my wireless card has no drivers installed. Heh. A simple reboot and everything works again? I'm using the Intel 4965AGN.


Edit: Never mind... I just tried disconnecting it a bunch and re-connecting and it is working fine. I guess it was just the BT interfering.

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Windows Vista™ Home Premium

You could have ran ipconfig /flushdns from the command prompt, garunatee that would have worked.

keep it in mind in furture

regards

I had a Dell D820 which did the same, and to solve the issue the wireless card was replaced as it was found that the wireless card was not compatable with vista and now I beleive the card in question is no longer used.

It could have been a bios issue... an older bios isn't programmed for certain functions... I had an Acer, and when my I updated my laptop... they had the wrong updates on the page for my Acer and I actually downgraded and lost function to my wireless card, the switch, the buttons on the front and 2 usb ports... ugh..!!! Now I'm gripin'... I called them, and they let me know I was using my one free support call, and there was no one there that could help me, it wasn't their fault I didn't get an OS reinstall disk with my laptop, and my next call would cost me 39 dolla!!! Bastards... anyways... have you checked the bios? ahem... lol.. back to subject.

With Dell Laptops and wireless problems in vista the route cause has in general been form my experience with the wireless card not being completly compatible with vista and as intel are the main suppliers of wireless cards to a vast majority of of computer manufacturers it is intel and co and this includes microsoft to get their act together before launching new operating systems. If I remember when NT first appeared there were similar problems with compatability in the early days, so be patient and all will come out in the wash.

Well now there's a fix! Thanks to a regular Vista user on Microsoft's TechNet forums, a fix has been found!
Here ya go:

>>Right click "Computer"
>>Click "Manage"
>>Under the "System Tools" section, Double click "Local Users and Groups"
>>Click "Groups"
>>Right click "Administrators"
>>Click "Add to group..."
>>Click "Add"
>>Click "Advanced"
>>Click "Find Now"
>>Double click "Local Service"
>>Click "Ok"
>>"NT Authority\Local Service" should show up in the list now
>>Click "Ok"
>>Close Computer Management and reboot.

Remember, all credit goes to BlueShot @ Microsoft TechNet Forums!

Im the one who posted the administator group option, let me know if this worked

There's kind of a huge problem with these instructions...

when I get to step 3, there is no "Local Users and Groups" in the System Tools" section.

Vista Home Premium. Maybe the instructions are for a different version; what are the instructions for me?