I'm facing a strange issue with a pmp430sm connecting to a pmp400AP: even if the reception is good, around -60dBm, a link capacity test shows strange results: uplink rate is never better than 1,57 mbps, when it could be 5,25 mbps. Other SMs on the same AP can achieve this throughput.
In engineering mode, I can see that the SM is transmitting at 3X downlink, but only 1X uplink (and, as my AP is set to 75% downlink, 0.25 * 7 = 1.75, which seems coherent).
Eng bidirectional theoretical at 3X (DL)/ 1X (UL): 14745600 down 1638400 up 16384000 agg (16.38 Mbps)
Has someone already seen this ? Is this a config or radio problem, or is the SM faulty ?