What changed? --> only "Disable Devialet Air"

[Coffee_fan]

Hi, I used to have this setup working like a well oiled machine, but suddenly things stopped working. Setup is:

Mac or PC --> wifi --> Apple Airport Express --> Ethernet --> Devialet LE200.

As I said, everything used to work fine and I could stream Tidal master @ 24bit/96khz from Tidal to my devialet by simply selecting my devialet on the air app.

Now however, the only thing I am offered in the Devialet Air App is "Disable Devialet", which is checked-in and I cannot uncheck it. I have tried to see whether I can get the old devialet menu entry from my Macbook Pro or from my Windows computer. I tried both version 2.1.3 and 3.0.1 RC to no avail. I also tried to downgrade the devialet software from 10.0.5 to 9.0.1 with no effect. I finally tried to Fix the IP address of the devialet on the speaker configuration. Still, nothing.

The devialet app detects properly the MAC address of the Devialet, but fails to find the IP address. Regardless of whether the devialet is on fixed IP address or DHCP, I can still ping it and further, I can see that the MAC address pinged corresponds to the one the Devialet App finds.

The last thing I can track back prior to everything not working anymore is installing the RC software on my windows 10 laptop.

If anybody has seen anything like this, I will greatly appreciate your help,
Thanks