Phantoms-Dialog via Ethernet

[Syver]

Dear All,

I had my Phantoms and Dialog working fine via Ethernet and then I changed ISP. 

I now have to connect everything together again using the new modem provided my my new ISP and the setup now fails every time when Spark asks me to connect my Dialog.

My setup is as follows:
- 1 ISP Modem with 2 Ethernet out connected to:
   - 1 Time capsule with wifi+router enabled
   - 1 8-port Netgear Gigabit hub

I tried plugging both phantoms and Dialog in the Time Capsule as well as both phantoms and Dialog in the Netgear hub resetting multiple time as per the instructions provided by Devialet but Spark invariably fails after asking if I have a Dialog.

Everything else is working fine: Internet, Wi-fi ...

I am obviously missing something and would be most grateful if you could help me understand why Spark is not detecting my Dialog.

Thank you.