Problems with the AIS signature service are often due to the following causes: Direct access to Swisscom support: The following circumstances cause the identification data to be deactivated and make a new one

You can create a TLS certificate for the Swisscom AIS service yourself. A detailed tutorial is available to download here for the exact procedure.

Swisscom Service Status Swisscom AIS – check your signature access (MobileID) Swisscom AIS – check your signature access (SMS) Swisscom FAQ page