I am sure they are doing lots of talking.... just not to us...
-----Original Message-----
From: Mark Radabaugh
Sent: Tuesday, August 18, 2015 8:27 AM
To: af@afmug.com
Subject: Re: [AFMUG] New Cambium 450 SM's dying after a couple of
dayswith"ADI communication error"
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 <af...@kwisp.com> 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: af@afmug.com
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: af@afmug.com
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 <geo...@cbcast.com> 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
