The AG DSN membership is personal and not to linked to specific apartments. Therefore subtenants have to become a members too.
If you sublet your apartment, it is your duty to inform us, so that we disable your network access for the time of your absence. Simply send us an email after your return and we will reactivate your connection. However, this will not affect your membership status. If you do not cancel your membership, we will continue to bill you the monthly membership contribution. If you choose to cancel your membership, you can reapply, when you are back.
Note that sharing your account data is a violation of your contract. You are fully responsible for any misuse of your account or network access.