Hi, I bought the TL-WA850RE last sunday, after setting it up from the tether app I had no problem, aside from logging into the tplinkreapeater site. I tried with lan and wifi on pc and wifi on cellphone too, sometimes it would let me login so I changed some stuff like led powering off automatically and the coverage from min to max. The problem started happening yesterday, while I was with the ethernet cable attached on pc from the extender, I started getting disconnection like while I was playing or on teamspeak the ethernet would go off and on automatically for no reason, like a reboot thingy, it would take like some seconds to get the ethernet back but it got kinda annoying since I would get disconnected repeatedly from the game. It kept doing it for some time, I saw that a led was going on and off like beeping too. Another issues relating my phone is that sometimes i'm connected to the extender wifi but it changes to the modem one automatically, or when I try to connect to tge extender wifi it says no internet connection, do you still want to continue, doing so connects me and after some seconds I can use internet. Hope I was clear regarding the issues, will wait for a response. (I did flush DNS cache and changed Hosts file on my pc too)