Hi Paul, We don't appear to have had any recent issues with our SXT units, and we have a fair few of them around the place. I'm probably suggesting something you've already investigated, but have you looked into the usual power related issues? PoE in particular can cause some hard to track down issues. Temperature changes can cause issues with PoE and internal components too. Weather (temperature changes) could explain the intermittent nature of the problem. Do you have the option of putting one on a desk and letting it run for a while in a more controlled environment to see if the problem persists? Regards, Philip -----Original Message----- From: Public <public-bounces@talk.mikrotik.com.au> On Behalf Of Paul Julian Sent: Wednesday, 12 September 2018 11:21 AM To: MikroTik Australia Public List <public@talk.mikrotik.com.au> Subject: [MT-AU Public] SXT Kernel failures and reboots Hi All, I have posted before about RBSXT reboots for no reason but nobody else seems to be having the issues. We found that upgrading to 3.41 firmware seemed to stabilise them for some time, but in the last couple of weeks they just started rebooting again for no reason, sometimes every 4 or 5 days even. Has anybody else come across this issue ? Netinstall isn't really a viable issue for the majority of them as they are of course up on masts and in production, I am looking for some way of trying to stabilise them if possible. They are currently running 6.40.8 or 6.40.9 and 3.41 firmware. Any thoughts would be appreciated apart from replacing them. Regards Paul _______________________________________________ Public mailing list Public@talk.mikrotik.com.au http://talk.mikrotik.com.au/mailman/listinfo/public_talk.mikrotik.com.au