@JirkaSmajlik Hi, Deco S7 can be connect to the AX1800 to extend the network. To avoid double NAT issue, you can set it as AP mode. But it cannot build Mesh network with Archer AX1800 router. You can...

@ThommyMD Hi, May I know where you purchased this router, from a local store or get from your ISP? And please check the label, is it EU version?

@JPC45 Hi, Thanks for posting on TP-Link Community. May I have the screenshots of DDNS and port forwarding settings? And how did you visit the webpage remotely and test the port 1143?

@ThommyMD Hi, Please make sure you unzip the file and use the .bin file in it to upgrade. If it fails again, please also provide a screenshot of the page including the error message.

@Patar Hi, Is it directly connected to the main Deco? Please also provide the following information for us to check: 1. The network topology. 2. The screenshots of the speed test results and the...

@ashish1989 Hi, Do you want to unpair a certain device with the adapter? May I know what device is that? You can also check if there is a button on the Bluetooth device that allows it to directly...