The most likely scenario behind the problem is that your credentials have been hacked. This
mainly happens when users skip to change their device’s default credentials after completing
the setup. Since the default username and password are the same for all Netgear repeaters, WiFi hackers can easily gain access to your device. Once done, they will not only change your WiFi password, but sometimes also change the recovery information related to your WiFi device.
So the next time you try to access your device settings, you will be told that your password is incorrect. However, since your details have been changed, your Netgear extender setup will not accept the password on mywifiext.net setup page.
Now all you have to do is get the credentials. This can be done by resetting your repeater to its default settings. Resetting your device to factory settings will erase all settings on your device, including usernames and passwords. Once done, consider reconfiguring your
extender and revisit the Netgear Genie setup wizard using the default credentials.
Even if you are successful with connecting the extender, it is necessary to focus on certain points to avoid such problems in the future.
● Whether you have your Netgear N300 installed at home or elsewhere, consider
changing your device’s password after you reconfigure it on www.mywifiext.net
● Choose a strong password for your repeater using special characters, numbers, and
letters.
● Jot down the information somewhere, simply if you neglect it.
● Create a visitor account to your site visitors to keep away from sharing extender
admin login information with anyone.
● Have a look at the listing of gadgets related to your extender. If any suspicious
connectivity is found, right away disconnect it, and once more alternate the login
password of your WiFi.