PKC..... wireless networks are sometimes unstable...maybe u can try restarting the modem sometimes? but dun worry... maybe i found a solution for u... here read this..

http://forum.lowyat.net/topic/525342

maybe u can try it for 2 days? haha.. ask them about it... it's a VPN(virtual private network) which routes u to the server..

If it works, Mc D on you! YEAH!!!