Soundbar 700 disconnects from WiFi constantly

[jalk21]

I have many devices connected to my network and my soundbar 700 is the only one that disconnects from WiFi constantly and is annoying to restart it unplugging the power cable to reconnect it almost twice a week. 

Is there a known bug related to this already reported? Is there a way to restart the Soundbar without unplug the power cable? I have my soundbar mounted on the wall and when this happens, I have to unmount it to restart it. 

P.S: My router is almost next to the Soundbar.