Lyrics are fetched either from lyrics.wikia.com, or from the MiniLyrics plugin (needs to be installed on your server). If you use the MiniLyrics plugin, it has to be configured in one of two ways:

A: Save lyrics in the song’s directory, or B: Save lyrics in a central directory.

You have to select ‘As the same name as the song’ regardless of which option you choose, or MediaMonkey Remote wont be able to find your lyrics file.

If you choose alternative B, make sure you tell MediaMonkey Remote where the lyrics are stored, as shown in the picture.