Since the 1.16.200 update you can no longer play on a server over cellular data even with the option enabled.
MCPE-106057
Cant play on servers using cellular data even when enabled
Resolved
Duplicate
1
Rhys Hunt
(Unassigned)
Unconfirmed
iOS
iOS 14.2
1.16.100
Retrieved
Thank you for your report!
We're actually already tracking this issue at MCPE-55405, so I will resolve and link this ticket as a duplicate.
If you would like to add a vote and any extra information to the main ticket it would be appreciated.
If you haven't already, you might like to make use of the search feature to see if the issue has already been mentioned.
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