x86 Router reboots randomly when changing queue settings

I have an x86 router running 3.16 and I’m having an issue whereby the router reboots randomly when I’m changing queue settings. Sometimes I can add many queue’s without issues but other times simply changing one queue setting will reboot the router.

This is what the log shows:

simple queue changed by admin
simple queue changed by admin
simple queue changed by admin
router was rebooted without proper shutdown

What could be the cause of this?

Keefe

What exactly do you changing in queue configuration ?

Mainly adding new queues for new customers.