Internet drops after an hour and need to power cycle

[wireless]

I just got my fiber and the ont is connected to à modem that is in bridge mode the router loses internet every so often and i need to power cycle the router to get internet. Same thing happens if i directly connect the router to the ont.

More... (https://forum.telus.com/t5/Internet-TV-Home-Phone/Internet-drops-after-an-hour-and-need-to-power-cycle/m-p/90656#M18689)