Belkin F9K1002V5 User Manual page 13

If you decide to change these settings, then enter the new values
and click "Save and Continue." (Note: The password must be at
least 8 characters long.)
If you changed your network name and password, make note of it
on the service card located on the foot of the Router. You will then
have to connect to the new network. Please refer to page 20 to do
this.