@Lomond80 Hi, Please check if this is your issue. If it is, you can update the firmware in it for your Deco X20. Satellite Deco Units Work Well but Display Offline on the Deco APP

@DU60 Hi, Thank you so much for taking the time to post the issue on the TP-Link community! To better assist you, I've created a support ticket via your registered email address, and escalated it to...

@LukaszM_PL Hi, Thank you so much for taking the time to post the issue on the TP-Link community! To better assist you, I've created a support ticket via your registered email address, and escalated...

@egbertn Hi, Thanks for posting on TP-Link Community. To better assist you, I've created a support ticket via your registered email address, and escalated it to our support engineer to look into the...

@Maurizo Hi, Please make sure it is working with the original power adapter. And test with different wall sockets. If the issue still exists, please reset the router. If all suggestions cannot help,...

@Jacbuss Hi, Please refer to this set up video to configure your range extender. You can put the extender next to the main router when you set up, to make sure it can better catch the router signal.