I'll second that. We've had 10 out of 16 fail so far from a box of
25. One customer has had 4 radios now installed at his location.
We've started replacing 450s with FSK equipment in critical locations.
We are trying to get the remainder of this box (9 radios) replaced since
it is very likely that they will fail as well and we don't want to keep
pushing this rock up the hill. If anyone has advice on who to talk to
I'm all ears. So far, Cambium tech support is requiring us to get
screen shots of the radios, AFTER they fail, to RMA them. That is
after our tech guys drive for two hours and swap the things out with
another one likely to fail soon. Pretty discouraging for our staff and
customers.
Jeff
On 09/10/2015 05:26 AM, Tushar Patel wrote:
I thought the FSB came out because lot of people complain on the
failures, so at least in my mind it was related. If it is not then
cambium has not identified at least to us what is the root cause of
the problem and it has been addressed.
They are doing RMA but there is know way 20% failure rate is
sustainable in the field.
I hope cambium addresses this quickly and let us know what is going on.
I hope they allocate significant resources to this problem.
Tushar
On Sep 9, 2015, at 11:08 PM, George Skorup <[email protected]
<mailto:[email protected]>> wrote:
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:[email protected]>
*Sent:* Wednesday, September 09, 2015 8:48 PM
*To:* [email protected] <mailto:[email protected]>
*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 <[email protected]> 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
<[email protected]> 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
<http://www.cambiumnetworks.com/>www.cambiumnetworks.com*
**O: *847-439-6379 <tel:847-439-6379>
*M: *630-308-9394 <tel:630-308-9394>*
E: *[email protected] <mailto:[email protected]>
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