So i have 2pcs connected to each other with a cat5 cable,both running winxp pro. PC A has internet connection sharing on and has a dsl connection trough a usb modem. PC B i using the connection on pc A trough a gateway. before i installed service pack 2 on pc A everytinhg was working fine,i could access files from both pcs,and could use the dsl connection on pc B without any problems at all. Now after i have installed it pc A can see pc B but cant access it and pc B cant even access the workgroup with error message "MSHOME is not accessible...". If i uninstall sp2 everytinhg works fine. Anyway i want to use pc A with sp2 but i have no idea what to try next,i have tried many things for resolving the problem but nothing helped, besides just uninstalling sp2.