Has the SNR reading on the ePMP series proven accurate? I know to not believe the UBNT AirMax one and IIRC, the same with Mikrotik.
I have a link that has 23 dB of SNR (from both sides of a PtP), yet maintains MCS 0 for uplink and downlink. The link is down about 10 dB for some unknown reason (maybe wind from last night's storm blew one of the ends), but 23 dB should be plenty to do a little better than 0. Running 2.6.2 and both sides have been rebooted. ----- Mike Hammett Intelligent Computing Solutions Midwest Internet Exchange The Brothers WISP