Hello, we have problems with SM, this is connected to an AP (11km) -67 RSSI is the SNR of 30dBi, but the MCS are completely variables change almost every 2 seconds. SM has a plate of 25 dBi within a connectorized EPMP 1000 use the eDetect and everything goes well (green)
that could be happening? goes from 40Mb to 3Mb in seconds.
AP I changed to one that has and maintains -71 20 Mb on average. but at that distance should be Soble 60 Mb. something is happening. What can I do?
You have a lot of retransmission... It seems to be an interference issue, maybe not related to 802.11/ePMP devices (so you don't see them in eDetect). Try to run a spectral scan from both AP and SM and make sure you have a clean spectrum in your channel (5810 center, so you should have clean spectrum from about 5800 to 5820).
If it isn't so clear from both, try to change channel to another, it should help!
As giuseppe4 suggested, run spectrum analysis on both ends of the link. You may be running in the same channel or overlapping with a channel already in use by nearby radios.
