How to make Dialog work again?

[Neil W]

The update to firmware 2.9 brought back my golden Phantoms' wireless connection and that was good. But the Dialog started behaving erratically (only 30 % volumer on left channel) and a few weeks back it went completely silent. No sound at all from the Phantoms via the toslink connection from my htpc to the Dialog. The only answer from Devialet's support was a question why I still want to use the Dialog when it isn't necessary any longer. 

My question is simple: how do I set up the Dialog? I need it for the htpc (yes, it would be possible to run a toslink connection from the pc to one of the Phantoms but I don't want to buy a new cable and it's also nice to keep the floor free from cables). 

Firmware 2.10.0

The Dialog is visible under 'My products'. But no sound.

Just in case it helps anyone:

This is pretty much helpful to me. Well elaborated

I have a PC using AIMP and a NI TRAKTOR S5 DJ deck. If UPnP sounds very nice, the lag is just unbearable... The BT is not up to par... but maybe its just me.. and waiting for the connection between apps... well it needs work.

BUT once DIALOG is updated as well, in DOS 2 app just make sure you go into setup (not a very user-friendly when you just use it for the first time...) for the DIALOG as well... And online/email "help" is a mere restating of what I just ask for and their inane web attempts to explain... anything simply and clearly.

Anyway, set it to minimum delay. The app will set it up and recognise the optical connection (if all goes well) to whatever your source is. For good measure I use 3 x Ethernet cat 8 cables (future proofing...who knows) between DIALOG and each PHANTOM PREMIER 1 GOLD to my router. Cabling is not an issue in the office...The App should say Audio Stream Dialog.Optical. That's it...

So far I resolved ALL drop outs and hiccups I had with DOS 1 regardless of the connection... The "nice" add on to DOS 2 which allows us to continue to use DIALOG is appreciated... It's fast, accurate and stable.