I have seen in the documentation that there is a built in watchdog. However, I see no where how to congfigure it or details of how it works. I have issues where the router stops working after several days and needs to be reset. I thought that the watchdog would detect this and reset the router. Please provide details on functionality as well as configuration related to this feature.
Did you mean x300b? There is a kernel module about watchdog, you can check if it exists,
lsmod | grep dog
you can remove it and see if it will reset, to verify if the watchdog is working,
rmmod xxxdog
it will be reloaded after reset, don’t worry