My issue has been resolved. The problem was at my end, and not with the router. ISP's network engineers changed the front side of my fibre optic box and also changed the ports in my local network hub (or whatever it's called). It was a mere coincident that the frequent disconnects came at the...
I've had nothing but troubles since I bought this router. WAN connection drops in and out, most uptime I've had on my router is probably 2-3 days. I've disabled wireless ax, I'm gonna see if that works. And why does the router's system log say 'May 05' and the next line says 'Feb 27'? Clearly...