Fairphone 3 mobile vikings problem with data

Hi there, I’ll do this in English but Dutch or French is fine for me. I’ve always been very happy about my fairphone but 2weeks ago I changed provider (from Proximus to Mobile Vikings, Belgian providers) and with the new activated MV sim-card I can call or text, but mms and data is not working. I’ve read some other posts and I’ve been WhatsApping with the MV helpdesk for days (they’re doing their best) but nothing seems to work. I’ve tried every possible apn setting, I’ve done a network reset, switched on/off the phone about zillion times… Nothing. The sim-card is working on my friend’s iPhone but it’s just not working on my fairphone… Any ideas?
Regards
Dimitri

A post was merged into an existing topic: :gb: :fr: Belgium Mobile Vikings no data