I have tried to install an ID40 to my 861v4.

Roon recognises the ID40 as an audio zone
but I hear no sound.

I have got Roon set as 'net' option on mconfig.

My 861 is running firmware v 4.25 (found by
scrolling through display button in standby)
could this be this problem?

If so any tips on how to update to latest firmware.

Thanks for any help.

Home - 861 v4 LPS ID40, 559 x 3, 555 rears, Sonus Faber Olympica III & Olympica II, Kef 204 2C, Monolith+ x2, Samsung QE77", Sony UBP X800, Sky Q, Sky fibre, Roon, Qobuz. all interconnects by Chord.

Holiday - Pioneer SC LX901 (Refined Edition), Kef R700, R600, R300, Samsung QE75", Sony UBP X800, Sky Q, Roon, Qobuz, all Interconnects by Chord.