Hi, I just got my hands on a new Archer ax55 router that I set it up to work offline (no internet) because all I want it for for now is a local network, I disabled smart connect to be able to decide to which network (2.4 or 5) I want every device to be connected to. To my surprise the 2.4 Ghz either doesn't show up at all or it does show up but can't connect to it. I tried changing the channel, the width and even the wireless mode but all I got is that it does show up more often but I still can't connect to it. The only instance I was able to get my phone to connect to it is when I literally put it on top of the router, but my pc that is about 2 meters away can't connect to it and the same for my android tv that's in the other room. On ther hand, the 5 Ghz network works as intended. I tried reseting the router a few times but I'm faces with the same issues. I did also update the router to the latest firmware. Help please.