internet modem restart

Hello, I've have had problems with our Comcast Business router for awhile now. It is a SOHO network. Randomly throughout the day the internet will suddenly drop and the router will need to get power cycled. Sometimes multiple times a day. I recently went and got the router replaced to see if...

For about three months and 3-4 Asuswrt-Merlin versions I have a Problem. I switch off router and modem overnight via a timer. This worked until 3 months without Problems. Since that time, both devices start but the Internet connection does not work anymore. I have to restart the Asus router...