Try changing the channel on your ap.....
"mmattner" <mmattner@discussions.microsoft.com> wrote in message
news

66EBD5E-0D73-4566-8A61-B95BA13F6E23@microsoft.com...
> Hi,
>
> I've recently upgraded my Inspiron 9400 laptop containing a "Intel
> PRO/Wireless 3945 Dual Band 802.11a/g" wireless card to Vista Home
> Premium.
>
> I have now found that wireless has become VERY flakey - only occassionally
> when I boot up does a wireless network get detected even though a second
> laptop in my home is picking my home network up.
>
> On the occasions when the network is detected it is described as having an
> excellent signal and all works well. But for the 9 out of 10 times that
> the
> network is not detected I am forced to used an ethernet cable. I have
> updated
> to the latest driver on the dell site, even tried a later Intel version
> all
> to no effect.
>
> As far as I can tell I have ruled out the router (A Billion 7400G) as it
> was
> working perfectly (100% success under XP) and still working with other
> laptop.
>
> The flakeyness is what is throwing me as I cant put my finger on any
> possible cause.
>
> Anyone else had similar issues with this (or similar) configuration.
>
>
>
>
>
> The following is an extract from my event log which seems to relate to the
> error:
>
> Helper Class (AutoConfig Helper Class) Event:
>
> Wireless Diagnostic Helper Class Event
>
> For complete information about this session see the Wireless Diagnostic
> Informational Event.
>
> Helper Class: Auto Configuration
> Initialize status: Success
>
> Information for connection being diagnosed
> Interface GUID: 9c1a0b1a-798e-4bc4-902f-ddb38156447c
> Interface name: Intel(R) PRO/Wireless 3945ABG Network Connection
> Interface type: Native WiFi
>
> Result of diagnosis: Problem found
>
> Root cause:
> Windows cannot find any wireless networks in range of this computer
>
> Detailed root cause:
> Windows could not find any wireless networks in range of this computer
>
> Repair option:
> Click for information on how to find wireless networks in range of this
> computer
>
>
>
> Event Verbosity:0