Hi, which router (device type) do you use? I have a Digitec Connect MultiSIM card from 2022, which unfortunately does not work in my mobile router device, although it worked with the MultiSIM card from a previous other provider in the same router device. Unfortunately, according to Digitec's terms and conditions, the MultiSIM is not intended for a router and Digitec does not offer any support for this.
Unfortunately, Multi SIM is not yet supported with this subscription, although Sunrise offers it alongside Swisscom. Perhaps someone from dicitec will get in touch to find out if and when this is planned.