Choose the form that matches the credentials supplied for your account. A complete playlist URL, separate server credentials and a device activation code are different formats. Changing formats by guessing can produce an empty list even when the account itself is valid.
Read the fields before entering anything
A playlist form usually asks for one address and a display name. An account form may ask for server URL, username and password. Device-based activation often displays an identifier on the television. Those clues are more reliable than choosing the first button labelled login.
Keep labels separate from credentials
An account nickname such as Living room is usually local to the player; it is not the username supplied by the service. Likewise, your email address is not automatically the streaming username. Copy each value into its matching field and avoid adding punctuation around it.
Ask a precise question when the formats disagree
If support sends three separate values but the player offers only a playlist box, send a cropped picture showing the empty form. Ask which compatible method they support. Do not post a populated screen or let another website convert your private account details.
