Cisco 4431/K9 router reboot issue.

[JOHNSON CHIRRA]

Hi Team,

we have recently installed the Cisco 4431 router, its working last one month. yesterday suddenly rebooted, present running IOS is isr4400-universalk9.03.15.02.S.155-2.S2-std.SPA.bin. any bug released in same version, kindly suggest the solution. 

i have attached show tech support

Thanks & Regards,

Johnson.

[Philip D'Ath]

It says it was rebooted because a human reloaded it.

"System returned to ROM by reload"

So look at the humans who were logged in or had access.