Actually haven't sent them back in yet. Still have 3 of them on the floor in my office. They just stated they were unable to reproduce when I opened a ticket
I never correlated a lightning strike or surge with this happening until you mentioned it. I've had 2 of them start acting up out of nowhere when the weather was good. Maybe they had received a surge or a strike prior, and I just didn't notice it until another day. -----Original Message----- From: Af [mailto:[email protected]] On Behalf Of Nate Burke Sent: Thursday, November 03, 2016 1:18 PM To: [email protected] Subject: Re: [AFMUG] EPMP 1000 SM looping ethernet port after Storm Did they take back the failed radio and were still unable to reproduce? On 11/3/2016 11:44 AM, Justin Marshall wrote: > I've seen this issue multiple times > > FWIW, the SM isolation did not help in my experiences with this issue > > I've even opened a ticket with cambium, but they say they are unable > to re-produce the issue > > -----Original Message----- > From: Af [mailto:[email protected]] On Behalf Of Nate Burke > Sent: Thursday, November 03, 2016 12:39 PM > To: Animal Farm > Subject: [AFMUG] EPMP 1000 SM looping ethernet port after Storm > > I've had this happen twice now, so it's more than just a 1 off. Both have > happened in lightening storms. If you have weird things happening after a > storm, this would be a place to start looking. > > Symptom: Random loss of network connectivity (RF stays up) to most Sm's off > of an AP, and/or network switch reporting port loop. > > Cause: A 1000 Series connectorised SM could add the MAC addresses of > any other devices on the AP/switch to it's local bridge table. This > will cause random loss of connectivity to any other SM/CPE connected > to the same AP. Usually network connectivity can be solidly > maintained to this single SM over the RF link. The Ethernet link will > not pass any traffic, but will have a lot of MAC entries on port LAN > or Unknown under > Monitor>Network>Bridge Table These will all be MAC addresses from > Monitor>Network>other > SM/CPE devices on the AP. > > Remedy: Disabling the Ethernet port on the problem SM will solve the > issue until the SM is replaced. There has been NO damage to the CPE > device in ether case I have encountered, replacing the SM was the only > action taken. > > Notes: I realized that I do not have SM Traffic Isolation enabled at > the AP, I do not know if this would prevent the issue or not. I have > this bad SM labeled, If I can get some free time, I my try it on the > bench to see if that setting would prevent it from affecting other radios. > > Hopefully this will help others cut their troubleshooting time. > > Nate
