I've been using my RUT 950 for a couple of years and there has been a problem with wifi disconnections from the start. I can sit 1 meter from the router connected to the wifi with full signal strength and after a wile (seconds, minutes) the connections is lost. When trying to reconnect the wifi name can't even be seen. This happens with all kinds of devices (iphones, ipad, PC, TV). The router works fine when connected to LAN port by cable.
The router is connected to internet by 4G, no backup WAN is configured.
I'm using the latest firmware RUT9XX_R_00_06_06.1