Chances are the web browser you are using to
navigate mywifiext is partly enabled or has any issues.
Start using a new web browser to navigate
the home page, to see how it functions.
Verify that you use the login extensor
address according to the functionality of your computer.
unless you own a Mac / iOS.
Visiting mywifiext.local in a situation like
this will help you fix the issue.
If you use a wireless connection to wire your router and new extender setup, then disconnect it and connect both devices with an
Ethernet cable, as all devices will interfere with the signal, which would prohibit you from accessing the mywifiext net login page.
Test if passwords that you used to
If a firewall or ad-blocking software is disabled and approved on your computer then disable those programs for a
while and try extender login to check whether you can now reach the login page of your extender or not.