A preview does not establish every viewing feature
MagellanTV’s FAQ allows visitors to browse and preview video before subscribing. The same page says an active membership is required for casting. A short preview working in a browser therefore does not establish that the account can use the service’s television-casting feature. Check the actual account state before interpreting an empty device list as a faulty television.
Make the local-network check
The publisher explains that casting discovers connected televisions on the Wi-Fi network. Confirm that the phone and intended receiver are on the same local network and that you are signed in. A guest network can be a different logical network even when its name resembles the main one. If you do not control the network, ask its operator about the supported connection rather than changing unrelated account details.
Use the service’s intended casting control
MagellanTV places its casting control with the film description and asks the viewer to choose a destination. That is a more specific route than assuming that an operating-system screen-mirroring menu provides identical behaviour. Keep the selected documentary and receiver name in your note. If the receiver is not listed, describe that discovery problem separately from a stream that starts and then stops.
Collect evidence before a broader reset
Record the app version, membership state, network route and intended receiver. Check the provider’s current device guidance for that model. This article applies the published preview and casting conditions; it does not report a tested account, successful cast or guaranteed compatibility with every television. Do not buy a second membership simply because one device list is empty.
Questions, answered
Does a working preview prove casting is enabled?
No. The provider states an active membership is required for casting.
What should I report if the receiver is missing?
Give the account state, app version, network relationship and exact receiver, rather than only saying the film will not play.