Where do I find the "network security key"?
After I installed my RE300 Wi-Fi Extender in a good location I then chose from the available Wi-Fi networks on my laptop and selected the Wi-Fi network_EXT with the Range Extender, but was prompted for the "network security key". I don't know where to find this "network security key". I tried the passwords that I set up for the extender, TP-Link and my gateway/router, but none of those worked. Our mobile phones seem to be able to pick up the Extender Wi-Fi network just fine. Any suggestions would be greatly appreciated!