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Hi forum,

i've been noticing the Rx rate of most of my deployed PtP stations fluctuating a bit for example from 120 to 180Mbps on MCS12 - 20/40Mhz which I suppose is quite normal, however for a particular one it's recently started dropping momentarily all the way down to 6Mbps which doesn't in fact even relate to any MCS rate. This is even with v2 of PharOS which i rolled out to all my gear recently. The true throughput of the link however doesn't appear to suffer the same consequences as it remains solid above 50Mbps.

Signal strength on the particular link is -69dBm on -98dBm noise that yields an SNR of 29dB which I suppose is in the greens territory for a link about 2km away.

I tried playing around with MAXtream on the AP front, QoS, WDS, setting the distance manually all which made no difference whatsoever. After googling around I see this being quite a popular occurrence especially with Ubiquiti's AirOS versions prior to 5.5, after which I suppose the 'bug' was put to rest.

Anyone else notices this?