I would uninstall wifi device and remove the device physicaly from the
system, THEN upgrade to SP2.. Then install software drivers for your device,
( or making sure you can access/have device drivers upon hardware
installation) then install physical device, see how that goes...
Thats what I would do myself
HubSwitch
"Kevin" <(E-Mail Removed)> wrote in message
news

657DA52-0B3F-4B37-AE84-(E-Mail Removed)...
> Installed SP2 on a brand new computer and lost my wireless connection. I
> rolled back to SP1 to achieve functionality, but would like to run SP2
> successfully.
>
> Here are the full details:
> 1. Purchased brand new Dell Dimension 8400 with Windows XP Home Edition.
> 2. Installed Linksys Wireless A+G PCI Adapter (WMP55AG).
> 3. Able to connect to my wireless network and internet without any
> problem.
> 4. Installed WinXP Pro Upgrade from shrink-wrap.
> 5. Able to connect to wireless network and internet with no problem.
> 6. Installed WinXP Service Pack 2
> a. System blue-screen early in installation process: Msg:
> "DRIVER_IRQL_NOT_LESS_OR_EQUAL"
> b. Continued SP2 installation until successful.
> 7. After reboot, unable to connect to wireless network.
> 8. Able to "see" wireless network, but attempts to connect to network
> result in failure both with and without error messages.
> a. Error message occasionally appears: "Unable to connect to network.
> Network may no longer be in range. Refresh available networks list and
> try
> again."
> 9. Spent 1.5 hours on telephone with Linksys tech support attempting to
> resolve issues. Unresolved.
> 10. Used System Restore to take computer back to WinXP Service Pack 1.
> 11. Able to connect to wireless network and internet with no problem.
> 12. Submitted help request via Microsoft online tech support.
> a. Tech support sent link to hotfix (KB 884020).
> b. Saved hotfix to hard drive.
> 14. Re-installed XP Service Pack 2.
> a. Once again, system blue-screen early in installation process.
> i. Msg: "DRIVER_IRQL_NOT_LESS_OR_EQUAL"
> ii. Continued SP2 installation until successful.
> 15. After reboot, still unable to connect to wireless network or
> internet.
> 16. Installed hotfix. Rebooted.
> 17. Still unable to connect to wireless network or internet.
> a. Same as above: can "see" but not connect to wireless network.
> b. Attempt to connect to network eventually fails with no error
> message.
> i. Connection dialog box eventually just disappears. No network
> connection made.
>
> Other diagnostic notes:
> . Router is Linksys WRT54G 802.11g.
> . System is located approximately 30-40 feet from wireless router:
> - 15-25 feet horizontal, 15 feet vertical (router is upstairs, PC is
> downstairs).
> . Distance from router is not likely the problem based on:
> - Able to connect PC to network under XP/SP1.
> - Able to connect ThinkPad with Linksys Wireless PCMCIA card and
> XP/SP1 to network from same location.
> - Able to connect HP iPaq 4450 Pocket PC with integrated wireless to
> network from same location.
> - Unable to connect Toshiba M200 Tablet PC with integrated wireless
> and WinXP/SP2 to wireless network.
> - Behavior of attempted connection is the same as for the Dell
> PC - able to "see" the wireless network but not connect.
> - Have not attempted to install hotfix on Toshiba Tablet PC.
> - Had been able to connect Tablet PC to my wireless network in
> the past when running XP/SP1.
>
> Suggestions?
>
> - Kevin