Yes this is correct I have an issue only when using Wifi.
When I logged into Ziggo and wished to report a problem I was transferred to this page(?) I don't have time for calls to Ziggo.
I do however have an issue with Vodafone mobile not being able to receive the system generated txt messages from DigiID Ireland. ( the same as DigID in the Netherlands )
I was given a brand new SIM card, my contract has been checked in the Vodafone shop, I reset all network settings and still not working.
My work mobile provider KPN has no issue receiving txt-s but I need to use a private number.
I also swap sim card from work iPhone to private and there was no issue to receive txt.
How can you help me on this please ?