Re: Ghosts in our 6 New Ubiquity Pros - provision issues.

["Bob Evans" <bob () FiberInternetCenter com>]

Mel,
Thanks, for all the detail.

Everything is in doors and directly connected by new 3 to 6 foot
manufactured cables on a cisco switches. All cables have been changed -
even tired crossover cables - same results.

I'm thinking it has something to do with the controller
communications...All these APs shouldn't need a controller after
configuration and boot up. But we leave it up.

Thank You
Bob Evans
CTO




> 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
>
> > On Jun 19, 2015, at 4:54 AM, Hal Ponton <hal () buzcom net> wrote:
> >
> > What version of the controller are you using, we're running 3.something
> > at that works fine.
> >
> > We've turned off auto update on all of the sites on the server, and
> > Nagios monitors them, we certainly don't see reboots 2-3 times a day,
> > the last time ours rebooted was when we lost power at our office.
> >
> > Contact me off list if you want me to take a look.
> >
> > Regards,
> >
> > Hal Ponton
> >
> > Senior Network Engineer
> >
> > Buzcom / FibreWiFi
> >
> > Tel: 07429 979 217
> > Email: hal () buzcom net
> >
> > > On 19 Jun 2015, at 11:01, Bob Evans <bob () FiberInternetCenter com>
> > > wrote:
> > >
> > > Ubiquiti Networks UniFi UAP-PRO Enterprise WiFi System - hard to
> > > recommend
> > > at this point. We saw people mention this brand here on the list -
> > > people
> > > like them. So what could we have set incorrectly ? They drop link and
> > > re-provision on their own at odd times day or night.
> > >
> > > We have completed everything tech support asked of us. (Really, lame
> > > emails they respond with as if they didn't read your text - they won't
> > > call and you can't call them). We used POE from ciscos - then changed
> > > to
> > > their POE provided. They didn't recommend it, but we plugged them all
> > > into
> > > APC UPSes..... no difference. They all re-provision at different times
> > > even when no one is connected or in the building at odd hours like 2am.
> > > Each one does this 2-3 times per 24 hour period.
> > >
> > > Has anyone else experienced this?
> > > Anyone know what we may have set incorrectly ?
> > > Is this normal - do people put up with the 2 mins the APs are
> > > unavailable
> > > about 3 times a day? (UniFi support acts like it's not a big issues.)
> > >
> > > We use the UniFi controller on mac os x. We use their EdgeMax Edge
> > > Router.
> > > All the latest software in everything UniFi.
> > >
> > > Thank You
> > > Bob Evans