Lan network Help

salam all

i have a small network with 2 pc on a same workgroup

one have a windows 7 and second one have a windows xp

both recieving ping

when i share a file in windows 7 machine my xp machine receiving shareing ..

but when i share a file in xp machine my windows 7 machine can't access shareing

he ask the network password

so please help me any one

note all option shareing,network discovery,password protection are enable

Are you using a blank password on your user account in WinXP?

no sir i am not useing blank password i have a passward but he didnt helpful