Model : TL-WA854RE Hardware Version : Firmware Version : 1.0.0 Build 20150916 Rel. 34723 ISP : cosmote I have this range extender and if i want it to work i need always to unplug it and plug it again

I bought a tp-link wifi extender, (don't remember the name but it has 4 antennas), and after a few days I started having a problem: sometimes the internet might stop working even if the main modem is