Router Randomly needs to be Rebooted

I have a third party Router that I use.  It is an asus ac2600 router.  On random occasions, the router stops working.  I'll come home, try to open the garage door, and nothing.  After I reboot the router, everything is back to normal.  I've been told that it could be due to Comcast retrieving customer data from the router.  

Should I run a script to force a router reboot each day?  If so, how?

Would a VPN help?

Should I run a script to erase customer data?  If so, how?

And, of course, it could be something completely random. 

I'd be thankful for suggestions.  Sorry for the newby questions.  Thank you.