I bought a new archer c5400 some month sago and it worked fine for at least one month, than the 2.4GHz network stopped working. It was showing up but no device was able to connect to it so after some

To whom it may concern, None of my wirless devices will connect to the router at all. I do not have any type of MAC filtering, I have hard reset the router 3 times, and the wirless signals are weak wh