I had that happen on an RB493. I got tired of it and replaced it with an RB493AH. I opened up the 493 and saw some physical damage on the board, of unknown origin.
----- Mike Hammett Intelligent Computing Solutions http://www.ics-il.com -------------------------------------------------- From: "Scott Reed" <[email protected]> Sent: Wednesday, March 31, 2010 3:50 PM To: "WISPA General List" <[email protected]> Subject: Re: [WISPA] Does anybody have any ideas? > Do the radios show link connection before you reboot? If so, have you > tried to MAC telnet into them? > I have a couple that would show down but I could MAC telnet into them. > All of the onboard functions worked. Then I tried to ping something > else and got a buffer overflow error. Reboot would fix for some period > of time. At least with mine I did not have to go to the site. > > Forbes Mercy wrote: >> We have been plagued with an ongoing issue in our Mikrotik backhauls. >> It happens about once a month and only on three radios that feed each >> other, all other sites work fine. Site A is my head end, it is a >> Mikrotik 433 with an XR5 chip that feeds about five miles to another >> site to Site B. Site B has the same equipment that goes through a >> managed switch then passes on to Site C about 7 miles further. >> >> What happens is we are suddenly paged that all three are down. >> Sometimes Site A stays up, most times not, we can get into Site A since >> it's the head end and we reboot it, it comes right back up. Site B and >> C stay down, we have to drive to Site B and reboot it, it comes back up >> but Site C stays down. We have a remote reboot for it from a redundant >> feed so after rebooting it C reconnects to B and they are all up. This >> will happen three or four more times in a single day or not at all again >> for a month, it's totally unpredictable. The boards are up but not >> communicating, it also takes down the other 2.4 Mikortik AP's at Site B >> and that has to be rebooted. We normally run arp -d to clear up any >> residual, it sure appears to be traffic related and we are on a bridged >> not routed network. >> >> The only similarities is it's only this feed, it usually happens in >> spurts of a day or two then stops for a long time, it always happens >> during the working day leading me to believe it's coming from a day >> user. We run Wireshark but see nothing, we torch the towers and they >> don't show much unusual. We're thinking it might be a deluge of traffic >> between Site B and C and are thinking of putting a PC at the C tower to >> run diagnostics there. This is very manpower heavy as we have to send >> people two places and average down time is one hour to do this. We are >> going to turn our network into a routed network this Summer but that >> doesn't help now. Any ideas would be appreciated. >> >> Forbes >> >> >> -------------------------------------------------------------------------------- >> WISPA Wants You! Join today! >> http://signup.wispa.org/ >> -------------------------------------------------------------------------------- >> >> WISPA Wireless List: [email protected] >> >> Subscribe/Unsubscribe: >> http://lists.wispa.org/mailman/listinfo/wireless >> >> Archives: http://lists.wispa.org/pipermail/wireless/ >> >> >> > > -- > Scott Reed > Sr. Systems Engineer > GAB Midwest > 1-800-363-1544 x2241 > 1-260-827-2241 > Cell: 260-273-7239 > > > > -------------------------------------------------------------------------------- > WISPA Wants You! Join today! > http://signup.wispa.org/ > -------------------------------------------------------------------------------- > > WISPA Wireless List: [email protected] > > Subscribe/Unsubscribe: > http://lists.wispa.org/mailman/listinfo/wireless > > Archives: http://lists.wispa.org/pipermail/wireless/ > -------------------------------------------------------------------------------- WISPA Wants You! Join today! http://signup.wispa.org/ -------------------------------------------------------------------------------- WISPA Wireless List: [email protected] Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/
