Network not found?

[kan_lori]

Hi Dear

I m a new in here i have some question want to ask guys....

My network ( just work station) have around 20pcs connection, b4 it no proble to connect fr pc to pc but now

some pc can not connect each other some time can connect some time can not connect ( like pc1 can login pc2 but pc2 can not login pc1.....)

but all pc is on network i say like this cause all pc can use internet....when have problem i restar pc is ok after use around 10 minute it will the same.....

I don't know what problem? but i not thinks it fr virus problem ( in network pc sue kaspersky v7, some v8)

I need some help pls!

Thanks for reply

Kan Lori