iiNet TP-Link TD-W9970 Quick Setup Manual page 8

Router Security Settings
If desired, you can change your modem's
administrative username and password. This can be
handy if you have tenants or meddling teens and you
don't want them to change your modem settings.
Simply select System Tools > Manage Control. You can
change the username and/or password in the Account
Management section.
Here's a tip:
If you ever forget your custom login details, you can
factory reset the modem to return it to the default
settings. However, you will also lose all other custom
settings, so you'll need to set up your modem again.
Internet address:
Default username:
Default password:
8
http://192.168.1.1
admin
admin