Manipulate Data Rates for TX and RX rates.

I am confused. How do I manipulate data rates for an SU where the Rx Rate is 54 and the Tx Rate is 6 and those values never change. I can get it to where Tx and Rx rate are the same and never change but never to where they are different and never change.

Thanks,

Leave all TX & RX data rates selected because the OS will try to connect at the maximum data rate possible. You probably have low signal or interferences. Work on that, try changing the channel or increase power.
Good luck!