If the speaker does not appear on the list, try the following:
• Clear the Spotify app cache (usually done via the Settings menu).
• Restart your phone/tablet/PC.
• Unplug the Play-Fi product, and plug it back in.
• Make sure the Play-Fi product firmware version is 1.4.0.045 or higher.
Note: Firmware version can be checked in the "About" section of the "Play-Fi" app Settings. If it's not visible, download the latest version of the app and update the Play-Fi product. If this doesn't fix the problem, try reaching out to Spotify for more assistance