PLEASE NOTE: My router is Archer C5 V4, but I can't find it in the model drop down menu

Hi,

My router has not been functioning properly for the last few hours. When I logged into the web interface (192.168.0.1), all pages were very slow to load.

At the end, it would display an error code 1 (internal error) message (and the data in the background does not load at all).

It doesn't show me the connected devices list anymore (shows blank).

My devices are not getting their IP addresses assigned. When I observed the traffic in wireshark, I could see DHCP requests being broadcasted by my device, but no DHCP OFFER from the router.

Please help me fix this issue.