I bought my wife a Compact Presario laptop about 3 months ago. It came with Vista Home w/SP1. We use the Linksys WRT54G ver. 5.0 wireless router. I have a server connected via LAN and 2 XP pcs connected via wireless. All were working well.
There was a Windows Defender update this past Monday, 4/5/09 at about 8:23 PM. It was an automatic update that cannot be rolled back.
Since That update was applied, the laptop exhibits all symptoms listed in this thread.
I will also add that the autoconfiguration applies its own IP address.
I tried to connect to the router with both the wireless and lan, with no success.
I have tested going directly to the cable modem with no success. Yes, I rebooted the modem prior to connecting to it.
I contacted HP and was connected to India. That person, after telling me to do everything that I had done already, set up a conference call with another Indian (representing Linksys). She told me to do everything that I had already done with the router as
well. When she told me that I needed to reset the router to factory defaults, I told her that the modem would need to be turned off as well and I have my phone connected to it. They promised to call me back...no call!!!!!
Any help will be GREATLY appreciated.
Ted