Obviously
Your hubby7 has failed
There may be a short circuit or other problems between you plug and unplug
I have also happened to a similar situation
Suddenly fail without any signs
The operating system cannot distinguish the hubby7 device
After the guidance of customer service staff
After confirming that the system cannot recognize hubby7 with a set of usb detection software
aqua sent me a new hubby7.
Currently using usb socket for power supply.
All seven sockets are plugged in.
D5 NEXT x2
Farbwerk 360 x1
High flow NEXT x1
Aquaero XT & LT x1
LEAKSHIELD x1
Thanks, Jacob! I've changed to a different device and now it works.