Inspect the disabled control before resetting the app
A setting that cannot be selected is not the same as a mobile connection that cannot carry video. If Netflix’s preferred cellular-data option is grey, first note the Automatic switch and the download queue. This gives a concrete account of the control state and avoids erasing prepared viewing merely to investigate why one preference is temporarily unavailable.
Follow the documented prerequisite
Netflix says its mobile-data setting cannot be changed while Automatic is enabled or downloads are pending. Its documented options are to switch Automatic off and either wait for pending downloads to finish or cancel the queue. The same help distinguishes Video Playback cellular usage from the Downloads Wi-Fi Only preference. Changing the streaming option therefore is not a complete statement about whether downloads may use a mobile connection.
Prefer completion when the queue is intentional
For example, a traveller may be downloading several chosen episodes over Wi-Fi while trying to reduce later cellular streaming. If those episodes are still needed, waiting for completion preserves the plan better than cancelling them simply to unlock the setting immediately. If the queue was accidental, review its contents before cancelling it. Confirm the intended profile and final data choice after the prerequisite is resolved.
Verify the outcome without assuming exact consumption
Return to the same control and check that the selected preference is visible. A saved data preference is not a measurement of actual carrier usage or proof that a separate app has stopped using data. For a billing question, use the carrier and device’s relevant records as well. Keep the download preference in the notes so a later cellular download is not misattributed to the streaming setting.
Questions, answered
Must I cancel a queue to change the setting?
Netflix offers waiting for downloads to finish as an alternative to cancelling them.