What is the deal with 4 hour session limits & 20 minute idle times?
Four hour session limits mean you will be automatically disconnected after 4 hours, and 20 minutes idle time means you will be automatically disconnected if your Internet connection remains idle (no data being transferred) for 20 minutes or more. This is to ensure everyone gets a fair go and to stop people leaving their Internet on all day, or while they are not using it.