User is recommended to change mywifiext net username and password once he/she has completed new extender setup. This is because of security issues, because default mywifiext net username and password is known to everyone.
To do so, process remains somewhat same as is initial steps of new extender setup. That means in this case also user have to first launch www.mywifiext.net setup page. Once http://www.mywifiext.net local webpage is launched user need to enter credentials for mywifiet.net login. If he/she had not changed mywifiext.net username and password earlier the they will be:
By getting login into www.mywifiext.net setup page, user can easily change username and password as per his/her requirement.