Make sure that you are using the legacy configuration program not the configuration program - see link to Meridian software at the bottom of this page. The newer program is for newer kit such as G series and later versions of 800 series. Some of the bits in the Wiki are specific to the newer version software.

Meridian owner since 1992
Prime & PSU, Focal Elear headphones, Roon (ROCK 8Gi5 NUC), Explorer 1 & 2, F80. 200/203, various Sonos (via Roon).