@Sollen Hello, try to reboot it or change another socket to plug it first. Then please hole the reset hole for 1s with the RE450 powered on and verify whether you can detect the default wifi network...

@SamuelV May I know what about the actual performance? Including the speed and stability? And you can relocate the extender to verify whether the signal strength become strong; Good day.

@Emergence Hello, please hard reset it by holding the reset button. Then you can pair them via the tpPLC utility, no pair button anymore. Instruction is listed below:...

@Gajowy Hello, we will do some troubleshooting to locate this issue and try to fix it. 1. What is the led status of the TL-WPA4220 when the wifi disappeared? Especially the wifi led. 2. Have you ever...

@Fred-Ratz Hello, we can do some troubleshooting first to locate this issue and try to fix it. 1. What is the led status of the TL-WPA8630PKIT now? Can you get internet from the powerline adapters...

@Robert_M Hello, sorry to respond late. Have you ever tried to change the DNS on your computer? Like 8.8.8.8 or 8.8.4.4? Besides, you can change the DNS of the Deco also.