@Giuli Hi, you mean all LEDs on the extender keeps blinking or only power LED blinking and other LEDs are off? and the issue started after a power failure, right? Please try a different wall socket,...

@LNGUPTA Hi, is the SSID of the extender the same as your host router? Please check the extender WiFi signal when you are next to the extender to see if it is full bars.

@Hernandy Hi, please refer to this guide to optimize the settings on your router: Recommended settings on the host router to work well with TP-Link Range Extenders If the problem still exists, please...

@Hassan95HK Hi, please refer to the guides below to set up the extender: How to configure Range Extender via Tether APP How to configure my range extender via web GUI If there is any further issue,...

@OldGeezer71 Hi, RE450 doesn't support mesh in AP mode, so if you would like to build a mesh network, please use it as range extender mode and connect wirelessly to the router. However, if it is far...

@Verena Hi, the roaming is decided by the client device(phone) itself actually, we are unable to force it to switch the WiFi. If your main router and the extender are using the same SSID, you could...