It would help a lot if Cambium was actually talking. Or maybe I have to hunt it down in their forum.
I have not seen a lot of OOB failures. They seem to last about 24 to 96 hours before falling over dead. We are seeing a mix of ADI Communication errors where they basically go deaf, and ones that watchdog reboot constantly. I don’t know if it matters if they are associated with a AP or not, but I don’t really have room or facilities to do burn-in testing. Mark > On Aug 18, 2015, at 10:19 AM, Ken Hohhof <[email protected]> wrote: > > Are most of these failing out of box, or after days or weeks in service? I > suspect the failure must be at least somewhat intermittent, or we would never > get past initial configuration. > > Is it possible to pre-screen for this before sending SMs out with installers? > Is it necessary for the SM to actually be registered to an AP for the > failure to occur? > > > -----Original Message----- From: George Skorup > Sent: Monday, August 17, 2015 8:21 PM > To: [email protected] > Subject: Re: [AFMUG] New Cambium 450 SM's dying after a couple of days > with"ADI communication error" > > I had a 5GHz SM showing ADI communication failure in red. I sent a > screenshot. The other was a 3.6GHz SM and showed only RF calibration > failure. They wanted to have Tier 3 support get access to it to > recalibrate. I explained that the event log was showing ADI forced reset > invoked, and it watchdog reset about every minute or two, just like the > 5GHz radio. After that, they accepted it for RMA, without the > recalibration. Those definitely showed issues on the bench immediately > at boot. I have about 30 more SMs in stock ready to be deployed and I > hope there are no more of these. > > On 8/17/2015 8:03 PM, Ken Hohhof wrote: >> I've had one so far, it ran for awhile at a customer then started rebooting >> for a few hours, run for a few hours, reboot for a few more hours. Cambium >> wanted a screenshot, evidently the event log wasn't good enough. I ran the >> bad one at the office for a few hours and it didn't screw up. >> >> They had me send it to the repair place in Elgin. What do you want to bet >> they will say no trouble found and send it back? >> >> >> -----Original Message----- From: Mark Radabaugh >> Sent: Monday, August 17, 2015 7:25 PM >> To: [email protected] >> Subject: Re: [AFMUG] New Cambium 450 SM's dying after a couple of days >> with"ADI communication error" >> >> 3 more this weekend. >> >> One lucky customer is on the 4th radio. We found her a 6 month old radio >> for the next attempt at repairing it. >> >> Mark >> >>> On Aug 17, 2015, at 7:53 PM, George Skorup <[email protected]> wrote: >>> >>> Knock on wood.. we've had two confirmed (already RMA'd) and maybe a 3rd out >>> of 60-70 so far. It sucks, but shit happens. >>> >>> On 8/17/2015 6:31 PM, Jeff Hardy wrote: >>>> I'm halfway through a box of 25 with 4 failures so far, all requiring >>>> truck rolls and embarrassment. I'm going to hold off on sending in the box >>>> of dead radios as we will probably have another one tomorrow. Nice to >>>> know they are working on it.... >>>> Jeff >>>> >>>> >>>> >>>> On 08/12/2015 09:43 AM, Mark Radabaugh wrote: >>>>> Oh, how the mighty have fallen. People used to write articles about >>>>> Motorola quality: >>>>> http://www.qualitymag.com/articles/84187-motorola-a-tradition-of-quality >>>>> >>>>> 3 failed so far out of a 25 pack - no six Sigma here. >>>>> >>>>> Dear Cambium - what’s going on, and how many more of these can we expect >>>>> to fall over dead? >>>>> >>>>> Not cool when it happens to the same new customer twice in 10 days. Makes >>>>> us look like idiots. >>>>> >>>>> Mark >>>> >>> >> >> > >
