Dear Cambium,
I hope by now you have sent few people to factory and they are sitting down there and running test for a week at least before the radios leave the factory. Can somebody address to us on what is going on and what steps are being taken to address this? Tushar From: Af [mailto:[email protected]] On Behalf Of Jeff Hardy Sent: Friday, September 11, 2015 2:20 PM To: [email protected] Subject: Re: [AFMUG] Field Service Bulletin - PMP 450 SM 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] <mailto:[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] <mailto:[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 www.cambiumnetworks.com <http://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]> <image001.jpg> Join the Conversation Cambium Networks Community Forum <http://community.cambiumnetworks.com/>
