There is no numbered on-site streaming-server selector in this catalogue. Watch now opens the relevant JustWatch choices, and the service you select delivers the video. If a player has its own quality or server setting, that control belongs to that service.
Why switching pages may not fix buffering
Buffering can come from the connection, the device, the playback service or a particular video edition. Check whether other videos play on that same service. If only one film fails, another edition may be worth trying. If every video stalls, start with the device and connection.
Automatic quality and delivery
Many players adjust quality as connection speed changes. Let playback settle before repeatedly changing the setting. Content-delivery networks, HTML5 playback and adaptive bitrate are technologies a service may use; the presence of a film card does not establish which technology its viewing destination uses.
Backups are not interchangeable
A list backup keeps your saved title choices. A mirror is another site address. An alternate viewing option is a different way to access the film. Knowing which one you need saves time. See not-working help for a step-by-step check.