The AG DSN membership is personal and not linked to specific apartments. Therefore subtenants have to become members, too.
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.
If you sublet your apartment, you have two options:
It is your duty to inform us, so that we can disable your network access for the time of your absence.
Simply send us an email after your return and we will reactivate your connection.
During this time you will still have to pay the monthly membership contribution.
You tell us when you want to terminate your membership, and whether and when you plan to come back.
After your return you will have to apply for membership again, due to legal reasons. Please tell us that you have been a member before – and preferably also your user-ID. Then we can simply reactivate your account.
Since you are not a member in the meantime, you do not have to pay the monthly membership contribution.