hello, I use tenda router for internet access and use switch and router both for the local area network. we have a 6 pc with windows xp running and window7 as well. I put the same work group in all. I use router to wirelessly access my lan. so when i try to see my network computers sometime it shows only laptop and sometime non. when i change my work group and set back same it shows all my network computer but after sometime when i close my laptop and put back on it can't see computers again. Others' laptop can see all computers in net via router and works fine. Well i can access internet but can't access or even can't see LAN wired computer in my laptop. I can ping all computers and get access through \\pcname. Please help thank you

Thanks for the suggestion but i am not that sound in networking but all i know is i setup in another laptop computter its working fine but not in mine. and in it it also show xp computer and wind 7 computer as well. i tried my computer on other network too bu pt it won't work. so pls can you explain considering me as a be-gainer for this. I would be very thank full. even i can't find the share printer as others are working