Find the scope
Try another live channel and an on-demand title. A problem limited to one source differs from an app that cannot sign in at all. Write down the time, channel and exact message. Confirm that you are contacting the service on eternaliptv.store rather than a similarly named provider.
Check your local setup
Restart the player and confirm your connection is working. Use Ethernet where practical, or test Wi-Fi from the device’s location. Stop unused streams and check the plan’s simultaneous connection count. Try a lower supported resolution if available. Avoid changing router, VPN and decoder settings all at once.
Give support a useful report
Send your device model, app version, whether the issue affects one or all streams and the steps already tried. Share your order or trial reference privately. Do not post the password, playlist URL or full device identifier publicly. Support can then check account, server and source availability more effectively.