I just purchased this router.  The Tether app is working well with the router.  Since I have time limits on the kids' devices, if they don't turn WIFI off on their devices when not in use, it still uses up their time.  But when they turn WIFI back on, it doesn't always recognize the device which means the name of the device and parental controls are lost.  How can I fix this?

     Also, is there a way for the kids to see time remaining on their devices?  I can see it in the Insights tab, but it would be nice to not be asked by my kids many times a day how much time they have left.  Thank you!