You can receive an error message or be unable to link to the site when you try to access the website mywifiextnet in order to set up your wireless extender. Since MYWIFIEXT is not a standard internet website, this may happen. It is a local web address used to open a NETGEAR wireless range extender's settings (genie or Smart Wizard). To access this web address, your device must be either physically linked via Ethernet or wirelessly connected to your NETGEAR range extender setup.