first premise to fixing internet is giving every device unique connection string.
if the server is not run by you, its run by someone else. when the server is run by someone else, its not your serve...
Acts 3:19‑20: Repent ye therefore, and be converted, that your sins may be blotted out, when the times of refreshing shall come from the presence of the Lord; and he shall send Jesus Christ, which before was preached unto you.