Lot of reboots on RB153

Hello

I have 2 rb153 such rebooted 1-10 times on hour.

Configuration - wlan atheros sparklan 123 - client
wlan atheros sparklan 139 - ap/bridge

I have pppoe server on ap/bridge and ethernet for 13 users. Max active sessions 7-8. Simple queue for each users, nothing else.

On terminal I have this:

jan/01/2000 00:00:19 system,error,critical router rebooted without proper shutdown, probably power outage

Power is 18V over ethernet, cable 10m.
MT ver 2.9.39 bios 2.6

Any suggestion??

Pawel Rohde

Sparklan 139 does not draw a lot of juice but in any case probably first thing to check is amperage of power supply, integrity of crimps on POE.

Also I that the Sparklan wants 5v for the 802.11a PA stage so I’m guessing you’re on 2.4ghz here. I don’t think the RB153 is capable of supplying 5v.

If all that’s ok then maybe a driver issue? There’s another thread here with some users complaining of RB153 instability and several of 'em are using Sparklan boards. We’ve got a number of 153 boards deployed w/CM9, SRx and no problems (all running 48v).

Yes, my spark 139 working on 2,4GHz.

I have two installations with rb153.
First have 18V power supply from PC Engines, second have buffered power supply 24V (2 x 12V 7Ah batteries) - 2.5A.

Reboots are on both of RouterBoards.

Different power supplies, 24v at 2A is plenty, meanwhile unlikely to have two bad crimps in separate installations. Sounds more like a driver or wireless card stability problem, eh?

On another thread, Uldis makes this suggestion regarding use of RB153:

“…which Mini-PCI slots were used? If you are using one or two card you can try to check if it helps when you are not using J5 Mini-PCI slot.” which hints at maybe a bus termination problem when not using all slots.

Sheer speculation on my part but Uldis certainly knows the product

Now, here’s a really spongy idea so you should probably just ignore it: Assuming that RB153 does not supply 5v and then really sticking my neck out and assuming the two 5v supply pins on the Sparklan end up unterminated as a result, I wonder if that could cause a problem? Does not seem likely but if the 802.11a PA involves logic circuitry of some kind I suppose it’s not impossible.

I use sparklan 139 on RB532, too and works fine.
I will check usage J5 miniPCI lot, because I don’t remember witch I use.