Autometic disable LAN Login To Network Without Password

[iGuest 3]

Autometic disable LAN Login To Network Without Password

I have faced a strange problem last few days. After booting my computer it will running smoothly 10 to 15 minutes but after 15 minutes autometic the Local Area Network (LAN) will be disable. After that if I will try to share any folder or try to access theWORKGROUP than he can't response and showing a msg that msg will WORKGROUP doesn't accessible. Please help me out of this problem. I will face much pain from this problem. Every 10 or 15 minutes I will restart my computer. It is so much embarassing. I will be waiting for your reply.

-question by Rakib