Old logs are blown away on reboot. Use remote syslog to store any logs on another server so you can go back and see what may have happened. Also, make sure you have enough log space to store what you need.
Go to System-Logging and look under actions. You can set remote syslog there and under Memory and Disk, you can increase the number of lines for logging. On Thu, Mar 2, 2017 at 2:11 PM, Brough Turner via Mikrotik-users < mikrotik-users@wispa.org> wrote: > At 12:24 today, one of our core routers appears to have had a brief > outage. It's upstream of our monitoring server so initially everything > looked like a disaster, but upon further examination, the outage lasted > less than 30 seconds and the 11 VPN sessions at the monitoring server were > all back up in less than 37 seconds. Looking at the monitoring server and > each of the devices upstream of the monitoring server, all had uptimes of > >143 days, except the gateway router, a CCR1036. > > Strangely, the uptime on the CCR1036 suggests it rebooted at 12:24 today, > but there is nothing in its log. How can we have a 30 second service > outage and have the router's uptime reset with no log entries? On a router > reboot, we normally have dozens of log entries before the router is up, has > the correct time and is behaving normally. > > Here's a Winbox view of date, time, uptime and the log. Any ideas? Am I > missing something obvious? > > > > > Thanks, > Brough > > Brough Turner > netBlazr Inc. – Free your Broadband! > Mobile: 617-285-0433 <(617)%20285-0433> Skype: brough > netBlazr Inc. <http://www.netblazr.com/> | Google+ > <https://plus.google.com/102447512447094746687/posts?hl=en> | Twitter > <https://twitter.com/#%21/brough> | LinkedIn > <http://www.linkedin.com/in/broughturner> | Facebook > <http://www.facebook.com/brough.turner> | Blog > <http://blogs.broughturner.com/> | Personal website > <http://broughturner.com/> > > > > _______________________________________________ > Mikrotik-users mailing list > Mikrotik-users@wispa.org > http://lists.wispa.org/mailman/listinfo/mikrotik-users > >
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