Stieflockaung49 Did you annouce your move as described in the link below)? If not, just do it, otherwise you won't have any Internet. the button:
in the link below the leads you to your profile in MySwisscom, where you need to click on "Report a move" and follow the steps indicated there. If you already have done all this, then the address will be changed automatically by Swisscom, you can't change it by yourself.
Report a change of address, house or apartment move – | Swisscom