I'm currrently using two Totolink A2004NS routers with one of the routers being the main router and another connected through a LAN cable, which acts as a repeater. I've disabled NAT functionality on the second router so that it acts purely as a repeater. However, when my devices switch from the WIFI of the second router to that of the Main router I am able to connect to the WIFI but there is no internet connection, this lasts about 5-10 minutes before it starts working again. Has anyone encountered this problem before or know the solution?