
I'm at the in-laws this weekend and my FIL goes to turn on their Windows XP system, and the system barfs saying that the hardware has changed and XP needs to re-validate (was working fine last night). Nothing has changed, but I tell it to go ahead and do it anyways, but it fails. Come to find out the wireless card is no longer working. The system sees the card as a valid interface, but won't send or receive packets on it.
I noticed in Device Manager that for each interface, their is an accompanying "Packet Scheduler Miniport," but they all have the yellow exclamation point next to them. Double click and see "Windows cannot initialize the device driver for this hardware (Code 37)." I've tried uninstalling the all network devices and rebooting, but I wind up at the same point every time after reboot. I reviewed the Event Viewer logs and, their are a few errors about the packet scheduler failing failing to register with the generic packet classifier (msgpc.sys).
Now, I have no idea how long these scheduler miniports have been there, and its entirely possible that they are unrelated to this problem. I've never encountered this problem, and Google isn't shedding much light on this ATM. I'm open to suggestions here. Thanks.