Most probably you are experiencing a connection problem on your device and this may be because your extender is experiencing an issue connecting it with your device. mywifiext.local may fail to connect because of blockage of metal objects, heavy networks, heavy glass, translucent glass, etc. To avoid such an issue, you should always place your extender in the same room. After getting the green light on the extender means that it is connected to your device.
Unpack the Wi-Fi extender from the box carefully and find a proper place to install it. Make sure that you have placed the extender near an electrical socket. The steps for Netgear new extender setup are mentioned below.
Note: After going through the above steps, you will be able to complete the steps for mywifiext setup. You can also refer to the steps in case you are looking for www.mywifiext.net setup page.