I have a desktop wired to a wireless router and a notebook with a wireless connection to the router. Both computers use Win XP Home Edition. After installing Service Pack 2, I lost the ability to file share. Both computers connect to the Internet ok and I can ping each computer from the other, but neither computer shows up in Network Places. I get the error message described in Microsoft KB Article 318030, but their resolution doesn't fix the problem. Using Search, each computer can find itself but not the other computer. Clicking on the computer found shows the shares. I have checked the shares and they are the same as they were before Service Pack 2 when all was working. The Windows firewall is turned off.
Can you help me?