Skip to main content

No puedo iniciar sesion, compre un modem usado y quiero cambiar de red y contraseña

In this case you need to reset modem so after resetting the modem will go to default setup any custom settings will be removed so use the default network name and password 
to connect to your network. 

http://arris.force.com/consumers/articles/General_FAQs/SBG6580-2-Web-Manager-Access