Are you sure it's the cold and not water from the ICE getting into that cable or you cable is longer then 300ft?
On Mon, Dec 19, 2016, 12:52 PM George Skorup <[email protected]> wrote: > Yes, the FPGA memory controller problem. We had tons of issues with that. > But it didn't seem to do anything with the ethernet. Mostly sync and > registration issues. But if the memory contents are unstable, I guess > anything can happen. I remember telling Aaron we had the most problems > right after the sun went down and then sometimes just after the sun came > up. It has to be temperature related! Sure nuf. > > 13.2.1 and earlier has the broken FPGA image. OK, not broken, but not able > to handle the insanity. Use 14.1.2 or 14.2.1/15.0.1. > > > On 12/19/2016 10:39 AM, Mark Radabaugh wrote: > > There was a issue with 450’s rebooting in cold weather that was addressed > in recent software versions. If you are not running current software I > would start looking at the release notes to figure out where you need to > be. > > The issue I believe was traced to a hard to locate instability in the > internal logic power supply when the CPU load changed that manifested only > under low temperatures. Cambium was able to reproduce it reliably in > extreme cold testing (like -40C) but it was still a very difficult item to > track down. > > > Mark Radabaugh > Amplex > 22690 Pemberville Rd > Luckey, OH 43443 > 419-837-5015 x1021 > 419-261-5996 (cell) > [email protected] > > On Dec 19, 2016, at 11:19 AM, Ken Hohhof <[email protected]> wrote: > > Have you checked the AP log to make sure it isn’t doing watchdog resets or > something? There have been a couple temperature related problems on 450. > One was the ADI Communication Failure problem, AFAIK that was only SMs. > Also there’s the memory controller issue, I think that’s at high > temperatures though, just the same I would make sure you are at 14.1.2 or > higher FW version. > > Some people have reported water intrusion on 450 APs. I guess if it has > water in the bottom which froze, that could do bad things. You say that > you swapped cables though, so apparently the RJ45 isn’t frozen into a block > of ice. > > You really should have a spare AP on hand. If nothing else, you could > buy a Lite AP, and buy an upgrade key if you actually use it and need >10 > subs. I hate buying APs used, you don’t know its history, and you can’t > RMA it. It’s like a refurb laptop, you don’t know why the first buyer > returned it to the store, did they just not like it, or did it have an > intermittent defect? > > > > *From:* Af [mailto:[email protected] <[email protected]>] *On > Behalf Of *Kurt Fankhauser > *Sent:* Monday, December 19, 2016 10:04 AM > > > *To:* [email protected] > *Subject:* Re: [AFMUG] 450 AP dropping Ethernet in cold weather > > new AP is on order, if I recall I think that this unit showing problems > was purchased on EBAY so I am wondering if there was a reason this unit was > on Ebay in the first place. > > On Mon, Dec 19, 2016 at 10:59 AM, That One Guy /sarcasm < > [email protected]> wrote: > > wrap the whole radio and antenna in aluminum foil to keep the heat in. > > seriously though, do you give subscribers any access to the units? If so, > I wonder if having them run a bunch of link speedtests could generate > enough processing to warm the unit > > On Mon, Dec 19, 2016 at 9:54 AM, Kurt Fankhauser <[email protected]> > wrote: > > Seems that the colder it is the more frequent the flapping is. I doubt its > the RJ45 ends since I tried a different cable run on the tower and still > showing the same issue. > > On Mon, Dec 19, 2016 at 10:42 AM, George Skorup <[email protected]> wrote: > > I would try new RJ45s on both ends. If that's not it, then swap it and RMA > if it's still under warranty. > > > On 12/19/2016 9:35 AM, Kurt Fankhauser wrote: > > I have a 3.65ghz 450 AP that was running flawless for over 6 months until > we got our first really cold spell last week, temps dropped to near 0 > degrees a couple nights back to back and when I woke up one morning the AP > was dropping offline. Logged into the Mikrotik 2011 and it showed Ethernet > was flapping. (was originally going through a Sync Injector). I had an old > FSK AP going through the same sync injector and wasn't showing any > problems. I tried switching the ports on the sync injector, changed ports > on RB2011, eliminated sync injector and used a standard Canopy SM power > supply. Finally I even switched the known good Ethernet cable from the FSK > AP to the 450 and the port is still flapping. Won't lock to 10-baseT > either. I am thinking at this point that I am going to have to replace the > AP. > > > > > > -- > If you only see yourself as part of the team but you don't see your team > as part of yourself you have already failed as part of the team. > >
