Bandwith Issue

Hello everybody, i actually have a small network, 1 PMP430 and 2 SM’s.

Signals levels between AP and SM’s are -60dB, pretty good!. The problems is that when I run a link capacity test my aggregate is 1 - 2 Mbps.

This is new because those links were working @ 14Mbps each.

Does any one have experienced something like this.?

Could there be new RF interference in the area?  

Can you run a SA scan and see what the freq you are using looks like?  

What Freq 5.4 or 5.7?  

What SW version?