@Gustavoppw Test with another power supply 9VDC/0.85A or similar 9VDC to exclude PSU problem. If it still doesn't work try resetting the modem by pressing the reset button for about 10 seconds. If...

@castejonmarc Make sure you're with the lates FW for your RE - TL-WA850RE(EU)_V7_1.0.13 Build 231115

@Actea It seems that this behavior has been observed in other router models as well - details.

@GOM You can create a mesh with any Easymesh capable router model. Just not sure that Archer C50 supports this feature - it's not on the list of Easymesh capable routers yet.

@helloostap Here's how to find your router LAN IP address. After you've fond the router IIP address point your web browser of choice to http://<router_IP_address> to login. If your router WebGUI is...

@CG5 You can use any standard modem with this Deco model. To avoid double NAT in your local network you can consider Deco in AP mode or setting the modem in bridge mode.