I am swisscom inOne go mobile customer. On 16 December 2020 I went through Frankfurt airport on transit and had extremely frustrating experience with data roaming on my mobile. Voice roaming was OK, however data roaming was not working at all. Signal indication was good but no internet connection. I needed to show some document from the cloud at check in counter and waited for download for 5 minutes and gave up. Tried to see search some information from Frankfurt airport web page, no luck.
Should I've done something to activate roaming?
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