RT-AC66U random restarts multiple times per day (I have logs!)

[Plumbob]

My router seems to restart randomly multiple times per day, generally with a several hour intermission. Does anyone have any ideas? I'm on the latest firmware, did a factory reset, and everything should be fine. But it's not! Here's the part with today's date... there are more entries from another date which may just be the default date prior to the router obtaining the current one. Let me know if you need more of the logs. Please help!

Apr 20 20:34:43 rc_service: ntp 544:notify_rc restart_upnp
Apr 20 20:34:43 miniupnpd[548]: shutting down MiniUPnPd
Apr 20 20:34:43 miniupnpd[563]: version 1.9 started
Apr 20 20:34:43 miniupnpd[563]: HTTP listening on port 44925
Apr 20 20:34:43 miniupnpd[563]: Listening for NAT-PMP/PCP traffic on port 5351
Apr 20 20:34:43 rc_service: ntp 544:notify_rc restart_diskmon
Apr 20 20:34:43 disk_monitor: Finish
Apr 20 20:34:43 disk monitor: be idle
Apr 20 20:35:10 crond[293]: time disparity of 1431394 minutes detected
Apr 20 20:55:23 rc_service: httpd 290:notify_rc start_webs_update
Apr 20 21:00:43 disk_monitor: Got SIGALRM...

 

[OzarkEdge]

My router seems to restart randomly multiple times per day, generally with a several hour intermission. Does anyone have any ideas? I'm on the latest firmware, did a factory reset, and everything should be fine. But it's not! Here's the part with today's date... there are more entries from another date which may just be the default date prior to the router obtaining the current one. Let me know if you need more of the logs. Please help!

Apr 20 20:34:43 rc_service: ntp 544:notify_rc restart_upnp
Apr 20 20:34:43 miniupnpd[548]: shutting down MiniUPnPd
Apr 20 20:34:43 miniupnpd[563]: version 1.9 started
Apr 20 20:34:43 miniupnpd[563]: HTTP listening on port 44925
Apr 20 20:34:43 miniupnpd[563]: Listening for NAT-PMP/PCP traffic on port 5351
Apr 20 20:34:43 rc_service: ntp 544:notify_rc restart_diskmon
Apr 20 20:34:43 disk_monitor: Finish
Apr 20 20:34:43 disk monitor: be idle
Apr 20 20:35:10 crond[293]: time disparity of 1431394 minutes detected
Apr 20 20:55:23 rc_service: httpd 290:notify_rc start_webs_update
Apr 20 21:00:43 disk_monitor: Got SIGALRM...

The log does not suggest anything to me.

Perhaps bad power, bad power adapter, bad router hardware, cabling/electrical fault?

OE

 

[Plumbob]

Yes, perhaps you're right. Not sure what to replace it with though...

 

[OzarkEdge]

Yes, perhaps you're right. Not sure what to replace it with though...

For bad power, put it on a UPS.

For a bad power adapter, find a spare that fits... same DC output voltage and equal or greater current rating.

For bad router hardware, consider the RT-AC86U.

For suspect cabling, remove all, inspect, and connect it back gradually over time. Replace anything that looks marginal/damaged.

If the router gets very hot, make sure it has good ventilation.

OE

 

[Latzz]

The first thing to suspect is router getting too hot. Causes could be vents clogged with dust or stacking the router on top of the modem. Should this not be the case, its probably a failing power adapter. Hardware failure is probable but I would try to eliminate the first two first.