@GamerGeek Yes, it could be an electrical wiring issue. Good to know you've sold the problem - after all nothing can beat a good ethernet cable. Here's some directions on how to place your router for...

@Radu_C Well if you can't see that in the Deco app you can use the same Wi-Fi Analyzer app to check the wireless channel of the 2.4GHz Deco SSID.

@Radu_C That probably depends on your mobile hotspot implementation. With another wireless device using the Wi-Fi analyzer app you can scan for your hotspot SSID to check its channel. But you should...

@Adrian-L_1 Read through this article - it may answer all of your questions.

@Radu_C Have you noticed on which wireless channel the connection with your hotspot was established ? You may take a look at this thread for more details on you issue.

@GPBH What you can try is a hardware reset by pressing its reset button for about 10 seconds. If the RE190 works after a successful reset you have to re-configure it from scratch. If it still behaves...