The usual is.

1. Try another RF channel. I can't tell you how since there is NO STANDARD on this. Your Access Point and Client software usually has this in a menu. I can't know this.

2. Reduce the link speed by 1/2 or more. Again, I won't know your software.

3. Reduce the distance from the Access Point to the Client.

4. Change the Client hardware.

5. Change the Access Point.

Bob