View Full Version : Help! 3 sectors at one location all go down at the same time
dusty1300
01-28-2009, 07:35 AM
This is driving me crazy. I had 3 sectors at the same location go down today. I could get into every one of them and do a scan and they would see other locations in town, but not each other. We finally had to go out there and unplug the POE for each and them all came up and cpes reassociated again. For some reason, as I mentioned in another post, it seems that sometimes, for reasons I can't figure out yet, these radios quit transmitting. They will scan, but not transmit. You can still get into them just fine.
Is is possible that I have a bunch of POE units that are not reliable? Would a bad POE injector cause a radio to work, but not transmit?
This is the model we are using most of the time:
http://www.streakwave.com/Itemdesc.asp?ic=POE-24i&eq=&Tp=
Tom
I don't think its a directly related PoE power supply problem. Even though those units are rated at half an amp output at 24 volts, they are still supporting the 12 watts needed by the radios.
Even if it was a PoE problem, its hard to imagine all radios going down at the same time. There might be some indirectly related problems that in turn affect the PoE (but hard to imagine that also). Can you try a different PoE for a few weeks? That will help you definitively narrow down the problem.
Try something like the standard UBNT power injector and a 18 volt one amp Radio Shack power supply.
dusty1300
01-28-2009, 07:56 AM
All 3 poe's are plugged into a UPS. I was thinking about overload protection of the POE's, but if it was shut down, then the radio wouldn't run at all. These AP's have been running for months just fine, till today and they all 3 quit transmitting.
What radio shack power supply is that you are talking about. I can't find it.
Tom
If not on their website, they may not have it anymore.
Try this
http://www.l-com.com/item.aspx?id=22185
dusty1300
01-28-2009, 08:23 AM
Oh, you mean use the supply to power the poe.
Any idea if UBNT has any features in the radio to shut down transmissions due to surge or any other problem? I'm trying to figure out what was actually shut down. I know there are two power and two grounds on the POE to the Mikrotik 411 I'm using. After that I don't know. I'm going to look at the 411 info I can find to see if maybe one of the power lines is being shut down and the other still runs. Strange I can still get into the radios just fine, but no transmitting.
Tom
