Solutions to the problem are varied, however most of the solutions found on the web just mask the problem by simply guiding the user through turning off this notification. Now this solution may work great for systems that are showing a false positive error, but what if the system genuinely has lost its local area connection or the connection is unstable, what then?
1) Your Network or DSL router may have bad or missing information. Powercycle your router and/or rebuild the configuration in your router.
2) Double-check your cabling to the computer. Make sure you have the correct type of cabling, straight-through CAT 5 or possibly a crossover cable and try another cable or test the cable to make sure its working properly.
3) Check your network card
to make sure its configured correctly and working properly. Many times setting the network card to 10Mbps/Full Duplex will solve this issue. To do this, open Control Panel, System, Device Manager. Go to the properties of the Network card, click on the Advanced tab and find the Link Speed and Duplex section. Change it from Auto Detect to 10Mbps/Full Duplex.
4) Check and test your firewall. Your firewall, especially if its a software firewall like ZoneAlarm
, Black Ice, Norton Firewall or something else could be blocking the connection. Disable your firewall and test the connection. You may have to resolve the problem by even uninstalling and reinstalling the firewall.
5) Check your IP address assignments and workgroup settings in the computer for accuracy. Statically assign IPs to the computers in your network.
6) Reset your TCP/IP stack by downloading and running WinsockXPFix.exe
a Visual Basic program designed to fix corrupted TCP/IP issues, host file problems and a variety of other connectivity issues.
7) Also this issue is relate to SP2 update (in that case you should run the Microsoft patch (KB884020)