The UBNT controller is only required when setting up the APs or for certain guest portal functions. I'd just leave it connected all of the time.
----- Mike Hammett Intelligent Computing Solutions http://www.ics-il.com Midwest Internet Exchange http://www.midwest-ix.com ----- Original Message ----- From: "Bob Evans" <b...@fiberinternetcenter.com> To: "Steve Naslund" <snasl...@medline.com> Cc: nanog@nanog.org Sent: Friday, June 19, 2015 11:26:42 AM Subject: RE: Ghosts in our 6 New Ubiquity Pros - provision issues. > That's possible but I if they are re-provisioning on a regular schedule I > kind of doubt it. It would be easy to test though. Plug an AP directly > into your switch with a quality pre-manufactured patch cord and see how it > acts. If it exhibits the same symptom it is probably not cabling. Also, > have you checked your interface counters for any packet errors? Yes, no packet errors crcs or frags. > Don't > forget to look at your controller because if the controller became > unreachable for any length of time that could easily cause your APs to > re-provision as they reconnect with the controller. This is did not know - thought the controller was just to provision and monitor. After all why would a manufacturer make one point of failure for a campus setup that uses thier own edgerouter for the dhcp etc. Doesnt seem correct. But will will investigate it. > I might set up a ping > every second from the site of the access points to the controller and make > sure the availability of the controller is 100%. Yes that and what the ciscos report on the port link. > If you are on Cisco > switches you should have log messages regarding PoE be granted on > particular ports as well as up down messages on the interfaces. Yep and we get them. > Do you > see the ports going up and down? It is important to have NTP on the APs > and switches so that you can correlate events in time (i.e. did the AP > reboot causing the Ethernet link to drop or did the link drop causing the > reboot?) I am sure its the APs dropping - as non of the other devices VOIP phones etc drop in the logs. Thanks Steven Bob > > Steven Naslund > Chicago IL > > >>Bob, I've deployed tons of Ubiquiti gear, and have seen this problem >> before. It always turns out to be poor quality cable installation. POE >> does not tolerate low quality connectors, especially in outdoor >> environments. There are >many aspects to a quality cabling job, so the >> best thing you can do is seek out a qualified installer with outdoor POE >> experience. >> >>The most common problem I see is people using crimp-on RJ45 connectors >> directly on the ends of their cable runs. This is not how structured >> cabling is designed to work, in particular because most crimp-on >> connectors are intended for >stranded copper wire (such as that used in >> very flexible patch cords, designed to run horizontally over only a few >> dozens of feet), whereas the "riser" and "plenum" cable used for >> long-distance runs has solid core wires. The tiny >teeth in standard >> crimp connectors are designed to penetrate stranded wire, to make a solid >> electrical contact. With solid core wire, they just bend to the side of >> the copper core, making tenuous contact, which will conduct POE >current >> poorly (resulting in the resets you see) and eventually fail altogether >> as the improper connection corrodes over time. >> >>The correct installation process is to use "punch-down" RJ45 jacks at >> each end of the cable run, and connect from those jacks to your equipment >> (radio at one end, POE switch at the other). On the outdoor side, the >> jack/plug junction >needs to be in a NEMA weatherproof enclosure, with >> weathertight fittings. And, for human and equipment safety, you must use >> shielded Cat5e/6 cable anytime you go outdoors, grounding only one end >> (usually the radio end), and >protecting the cable with an inline >> lightning protector between the RJ45 jack and the radio. > >>If you haven't done that, then that's the first thing to fix. > >>BTW, avoid homemade patch cables whenever possible. Quality factory >> cables are hydraulically pressed and the plug is hermetically fused for a >> vastly superior connection compared to anything you can do with simple >> hand crimpers. And >all outdoor cables must be UV-grade cabling with >> weatherproof sheathing and water repellant inside (so-called "flooded" >> cable). > >> -mel beckman > >
