Sorry, missed the line that you had already tried switching channels. Maybe firmware??
On Mon, Nov 5, 2018 at 8:58 PM Jeremy <[email protected]> wrote: > I see this with interference (even though the noise floor doesn't seem to > go up). I would run a scan and see if switching channels helps. Also,try > upgrading to 3.2.1 on both sides > > On Mon, Nov 5, 2018 at 8:56 PM Colin Stanners <[email protected]> wrote: > >> That is strange. Was the channel switching done during one of the events? >> Did the radio come back still at the low modulation? >> >> On Mon, Nov 5, 2018, 9:36 PM Mark Frost <[email protected]> wrote: >> >>> Hi All, >>> >>> >>> >>> We’re experiencing a very weird and very intermittent issue with an >>> AirFiber 5x Link. >>> >>> >>> >>> For the past few weeks, we experience a one way drop in modulation – all >>> the way down to 1/4x (QPSK). This occurs at random times of the day or >>> night, lasting between 5 minutes to 2 hours, and then fixes itself. It >>> occurs randomly from one to three times in a 24 hour window on average, and >>> doesn’t seem related to traffic load. >>> >>> >>> >>> The link has been in and operational for the best part of 2 years with >>> no problems whatsoever. The path is 14.2KM (~9mi), 600mm dishes (45deg >>> offset ones) operating on a 30MHz channel and holds 64QAM. We’ve tried >>> moving channels but that hasn’t helped. The signal on both chains (1 and 0) >>> at both ends doesn’t change at all during the event (between -60 and -58 >>> across all). There is no environmental changes during these events (such as >>> rain, etc). >>> >>> >>> >>> I’ve spent hours reading the ubiquiti forums, and I’m still at a loss as >>> to what could cause the issue. We are operating on old firmware, and I did >>> see one post mention that the duty cycle was incorrect in a firmware >>> revision (we run at 50/50) but that seems very anecdotal. >>> >>> >>> >>> Our only option at this stage is to replace the units. I’m guessing >>> it’ll need to be both ends, as we don’t know if its RX on one unit or TX on >>> the other. >>> >>> >>> >>> I just thought I’d check in on the off chance anyone may have a >>> suggestion before we go climbing… >>> >>> >>> >>> Cheers, >>> Mark >>> >>> >>> -- >>> AF mailing list >>> [email protected] >>> http://af.afmug.com/mailman/listinfo/af_af.afmug.com >>> >> -- >> AF mailing list >> [email protected] >> http://af.afmug.com/mailman/listinfo/af_af.afmug.com >> >
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