Wi-Fi ad hoc mode connectivity problems

[Kogi]

Hi ,
I'v got X41 tablet , which connects using internal Intel Wireless card towards another cumputer with PCI WiFi card . Connection is recognized as an AD HOC (peer to peer).
First of all even though both cards supports G type wi-fi , it works in B mode , I think its normal.

But the problem is , that connection flips from time to time , every 2-5 minutes. It takes less than a 3-4 seconds to restore connection again automatically.

Wi Fi card on peer computer is good , cause worked fine with another Laptop.

Any ideas ?

thanx ....