I think the FSB is very specific to a set of radios that were identified
as improperly assembled. I had one 5GHz 450 SM show the ADI
communication failure. And a 3.6GHz SM show RF calibration failure. Both
rebooted with ADI force resets. Both not on the list. Cambium RMA'd them
without too many questions.
FYI. Maybe it's related, maybe not. I found some new SMs that had a few
solder balls rattling around in the cases, but they work fine.
On 9/9/2015 9:21 PM, Ken Hohhof wrote:
I have seen 2 out of around 100 suddenly exhibit the ADI
Communications Failure after about a month in service, neither was on
the serial number list. So a 2 day burn-in may help but you won’t be
bullet-proof. We’ve only seen it on 5 GHz SMs, but we use a lot more
5 GHz than 3.65 GHz, and no 2.4 GHz. No apparent correlation with any
environmental conditions like hot or stormy weather that could have
precipitated it.
Worst case will be it fails intermittently and the new customer just
thinks your service is really unreliable. One of the 2 failures we
saw was intermittent, rebooting for several hours, then registered for
several hours, then rebooting again, no rhyme or reason. At least if
it fails hard, they will call.
*From:* Tushar Patel <mailto:tpa...@ecpi.com>
*Sent:* Wednesday, September 09, 2015 8:48 PM
*To:* af@afmug.com <mailto:af@afmug.com>
*Subject:* Re: [AFMUG] Field Service Bulletin - PMP 450 SM
We had 9 failures in 50 we ordered, those were not listed in the unit
serial numbers.
What we are doing now is running radios in the office for at least two
days before we send out and we are seeing these failures in the office.
Even after doing that today we had one fail which was 1 hr drive from
the office and it was new customer too, installed last week. This
gives us bad reputation and cost us lot too.
So whatever the root cause mentioned in the email, if it was
identified but did not include the batch we got, so something is not
adding up still.
I really hope cambium gets to the bottom of these quickly.
Tushar
On Sep 9, 2015, at 8:22 PM, Steve D <bigd...@gmail.com
<mailto:bigd...@gmail.com>> wrote:
Just a bump... was this ever sorted out? Contained to just one batch
of 5.8 radios as listed? I know I've seen reports in other
frequencies but seemed less widespread? No mention from anyone in a
while... Just want to know before our next order...
-Steve D
On Fri, Aug 21, 2015 at 6:37 PM, Matt Mangriotis
<matt.mangrio...@cambiumnetworks.com
<mailto:matt.mangrio...@cambiumnetworks.com>> wrote:
I wanted to get this out to everyone before the weekend. We
found the root cause and identified the affected units by serial
number.
See the attached Field Service Bulletin, and you can post any
further comment or issue in the thread that discusses it here:
http://community.cambiumnetworks.com/t5/PMP-450/Field-Service-Bulletin-ADI-Catalina-R1-Chip-not-supported/m-p/43211#M1106
Apologies for the pain this issue has caused.
*Matt Mangriotis*
Senior Product Manager*
Cambium Networks**
*3800 Golf Road, Suite 360
Rolling Meadows, IL 60008
www.cambiumnetworks.com <http://www.cambiumnetworks.com/>*
**O: *847-439-6379 <tel:847-439-6379>
*M: *630-308-9394 <tel:630-308-9394>*
E: *m...@cambiumnetworks.com <mailto:m...@cambiumnetworks.com>
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