I’m done. I’ve had it. Every SR9 I’ve deployed in the field has worked fine until I start associating clients to it. When they start being used EVERY one fails within a Week! I had one sitting on a tower for 6 months with no problems. I associate a client to it - running solid -69/-70 in a week it dropped to -86 but still worked. Another week went by and it quit altogether.
Running them on RB532 boards, 48 volts POE, single card on the RB.
What gives? I manually put in power settings according to the white papers on Ubiquiti’s web site. I have them running 2.4ghz-5mhz data rate forced at 18/24mb
We’ve had so far only one problem w/SR9 and that one was toasted by an RB112 that arrived w/a defect in the PS circuit (and that’s the --only-- RB112 we’ve had trouble with, come to think of it).
How many radios have done this?
We leave ours w/the default power settings. Have you tried that?
What type of temperatures are you experiencing?
I have had a few cards that fail if the temp gets in the single digits F. Also have experienced on clients that shut off there cpe below 40f that they will not reasociate until temperature rises.
Anybody want to take a dare? If your outside temperature is below 32f and if you have a SR9 as a client to test with, pull the power, wait 1/2hour, plug it back in. See if it will reassociate. Was wondering if anybody else see’s this problem. Took me a long time to figure this one out.
Two different clients failed.
Client 1: RB112 with SR9 and SR2
Client 2: Wrap.1C with SR9 and CM9
AP: RB532 with SR9 Only.
The AP had been powered on for some time - at least a week without being uplugged. The tempatures were low around 30ish
The CPE had been sitting in my car unplugged for some time - it was cold. However, it was picking up noise as I would expect. Just not detecting the AP.
I went from a 5dBi v-pol omni to a 9dBi h-pol omni. I was picking up no noise whatsoever on any channel. Last I had tested (about a week before) with the 5dBi omni I was picking up noise in the -40 to -60 range on every channel except for 2437 at 5mhz
Noise was running in the -90 area with the H-pol antenna. Is it possible for the noise level to drop and the radio still work.
From the bottom of the tower the CPE was detecting noise in the -63 area.
I’m starting to second guess if the radio is bad or not. I’d love some input if I’m doing something wrong.
After the failure I did try lower power settings to see if that made any difference.
They vary a lot. We have some that will cold boot at -25*F, some like it warmer. Its been a warm winter so far, we haven’t got any colder than that to date.
Standard winter practice here for years has been to fire up the MT, then watch the radio cards pop up as they warm up.
Yesterday we had a major power outage. All of my clients went down for 20 minutes. The temp ouside was 15 degrees F. All clients come back up but three. They were power was back on for about 2hrs, and the still did not come back up. Am I not waiting long enough? I think I have a bad batch of cards. Have been talking with Ubiquiti, they are still working on the issue. Any thoughts or Ideas? You sound like a veteran on these cards. Sorry Im not trying to hijack the thread
JWCN-
Sounds like you have a major noise issue, My noise level on the cpe never gets any worse than -90. IIRC.
Got about 160 right now. I think you’re quite right, there seem to be some batch issues. I don’t think I have any in your batch as I haven’t seen these kind of problems (yet).
We have been having some hell with OSBridges 2.4 that doesn’t like the cold, and problems with some RB153 that may be cold or may just be RB153s being RB153s.
Rest of the stuff is pretty good. We got down to -42*C last winter and the RB532s held up just fine.
I was having simular issues with RB112 and my SR9.
After almost 2 weeks of trying new pigtails, new Sr9 cards and various other combinations, my issue ended up being the Routerboard. HOW DID I FIND THIS OUT??? …I decided to take my equipment out of the enclosure and re-mount it into the enclosure, one screw at a time. I started putting the screws back into the router board one at a time, then voila… The mounting hole beside s1 on the board (the one beside little push button),…if I put a screw in that particular hole on my RB112, I get associations to the AP BUT NOT ALL THE TIME.
Working well now that the screw is removed. Question is,… is it a PCB problem? Could it be grounding / shorting out? Is this happening to anyone else?
Since switching to 3 Beta 5 I find the link establishes quicker and signal is better.
1.5 km of treetops with obstructions in between.
I’m Very Amazed that I got the link to work. The CPE is a 13dB yagi the AP is 9dB yagi. The CPE yagi is indoors aimed through a guest bedroom wall… just for testing. I think once the CPE Yagi is outdoors and up an extra 7-10 ft we should see a signal improvement.
The AP Yagi is up about 110-120ft on a Trylon tower .
Woke up this morning to a -40c with a wind chill down in the -50c range. We should see a high today of about -28c and the forecast say these temps will be with us till Friday. The highest temp over the next few days will be about -22 -25c. We have several 532’s and 3 112’s with SR2,5’s and a couple of cm9s all working well. May be I get adventurous and stick a rb112 and a SR9 out in the garage for a test!
Gee, and I was all set to put a rig in my deep freeze to see what happens! Forget it… your outdoors are way colder than our “deep freeze”, which sounds like a toasty sauna by comparison.
