Audio Problem-NIS users

Hai all,
I'm rameez rahman working as a Technical assistant.
I configured NIS Server in RHEL 6.5 with 40 client PC's.All the clients are using the same os ie RHEL 6.5 64 bit.All the features are working fine except sound ie from client machine if a NIS user logged in he cant access sound.But if it is logged in as a local user sound is working perfectly.Please help me .

Welcome to the forum but may I ask why you post this question when you posted the exact same on another forum over 2 years ago???

Sound problem-NIS users

My problem not yet sorted .Want more suggestions .