@Sunshine "Do you mean that once you connect the RE450 to the router, the internet will drop on the router? And after you power off the RE450, the router will work again?" Yes, exactly. The it's...

Hello! I've installed a RE450 on my main router, the RE450 is located in an other house a about 20m from the router. Problem is that when the RE450 is connected the main router has no internet...