a pc that used to be able to share with other pcs on a peer-to-peer network became invisibile after a power outage. What changed?

pc 'x' can see shared folders on pc 'y' & 'z'. But 'y' & 'z' cannot see 'x'. It used to work, but after a power outage, 'x' became invisible. All pc's are xp home. It must have something to do with permissions, because 'x' can see the other pcs on the network. I have repaired the network connection, undone the sharing on 'x' and then put it back. What has changed?
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FriarTukConnect With a Mentor Commented:
try resetting tcp/ip
netsh int ip reset c:\resetlog.txt  (http://support.microsoft.com/?kbid=299357)
or using the tool

(http://support.microsoft.com/kb/811259 how to recover from winsock2 corruption)

you should really try doing the restore first & if that doesn't work than an in place repair install.
http://support.microsoft.com/?kbid=306084    "xp restore o/s to previous state"
Jeff PerkinsOwnerCommented:
when you say the pc is not visilbe, can you ping x from y and z?
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dsi8dsiAuthor Commented:
no, y and z cannot ping x. but x can see y and z.
Jeff PerkinsOwnerCommented:
can x access y and z?  can x ping y and z?
can you do ipconfig /all on x and then either y and z and then post results here please?
Have you checked to make sure that windows firewall isn't on x?
Are you running any sort of firewall software? Norton INternet security?
dsi8dsiAuthor Commented:
x cannot access y or z. x cannot ping y or z. x can print to a network printer.
if have turned the windows firewall off. it is running trendmicro pccillin.
i will get the information you requested via ipconfig. these pcs are located in an off-site location so it may be next week.

thanks for the input.
for future ref, plz clarify which part of my comment helped you - thx.
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