I'm using beyond IPTV with internet fibre optic from TIME.

Does anyone know the setting for the router (linksys E1000)? because i want to change the name of the wifi and also the password. But when i want to connect to the setting using http://192.168.1.1 they ask for username and password, and i dont know that one (contractor from time set it up and i forgot to ask him)

Is it ok for me to change the name of the wifi and password ( i can just reset the wifi router using the button provided). But i'm afraid that there are setting that are TIME provider specific. Because i have tried connecting using the LAN cable from the GPON terminal to the wifi router, but there is no internet connection (I'm guessing they have some setup in the wifi router)

So anyone know that setting for the wifi router?