It is the problem of the Austrian Provider bob - it cannot handle “preferred network type”
LTE/TDSCDMA/CDMA/EvDo/GSM/WCDMA
it can only handle
piero posted in this thread No mobile data LTE/TDSCDMA/CDMA/EvDo/GSM/WCDMA does not exist? - #2 by Lait a code that changes to LTE/TDSCDMA/CDMA/EvDo/GSM/WCDMA
is there a code that changes to prefered LTE