ASUS DSL-68U wifi keeps dropping

So recently got this router but each day, I've been noticing that the Wifi keeps dropping for all devices and I keep having to restart the router. I've done some googling and found that this might have to do with the router's nvram but I'm still not quite sure.

Any other kiwis having this issue and had it fixed? This is for for the DSL-68U router, NOT RT-68U seeing there are two types.

Chur.