Make sure all the computers are on the same workgroup.
For XP:
-Click Start, right-click My Computer, and then click Properties.
-In System Properties, click the Computer Name tab to see the workgroup name. To change the name, click Change, type the new name in Computer name, and then click OK.
Make sure this is in WORKGROUP
Then make sure your win7 computers are also in the same workgroup by:
- Open System by clicking the Start button Picture of the Start button, right-clicking Computer, and then clicking Properties.
-Under Computer name, domain, and workgroup settings, click Change settings.
-In System Properties, on the Computer Name tab, click Change.
-In Computer Name/Domain Changes, in Workgroup, type the name of the workgroup you want to use, and then click OK. You will be prompted to restart your computer.
Give both computers a restart and then see if they can see each other.
rajusandeep12 :
Yes, PC having problem is running on windows XP. PC trying to access it is running on win 7. But problem occured only today. It was perfectly accessing till yesterday
alexinnes :
Hello,
What operating systems are all the computers on the network?
I know there can be problems with XP reaching Win7 computers on a network.