Check that Install unknown apps is enabled for Downloader, and that you have enough free storage.

Re-check your username, password and server URL against the original message for typos.

Usually an internet speed or Wi-Fi signal issue — see the dedicated buffering guide.

Try clearing the app's cache or reinstalling it — see the app crashing guide.

Quick answers

Is a wired connection better than Wi-Fi?
Generally yes, especially for 4K streaming or older devices.

Conclusion

Most Android TV issues trace back to permissions, login details, or connection quality — the linked guides cover each in more depth.

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