@Hmdualtaae1
May I know who is your ISP? Please confirm if you have a stable connection all the time with the ISP modem by connecting the computer directly to it.
Please ensure you are running the latest firmware on the router.
When the internet drops on the WR841N, how about the internet LED on it, is it still green or orange? What is the WAN connection type on the WR841N? Confirm if there is still a WAN IP address when the internet stops working on the router. If there is, please try to change the DNS server to something else different from that assigned by your ISP, such as 8.8.8.8 and 8.8.4.4, then reboot the router to check again.