Hi, could you share a bit more detail about what exactly isn’t working? For example - are you unable to connect to the extender’s Wi-Fi, or is it connected but there’s no internet? Also, do the LEDs on the TL-WA850RE show any specific pattern (like power or signal light blinking)? If possible, please mention whether you’re using it in Range Extender mode or via Ethernet (Access Point) - that will help figure out what’s going on