Hello,
 
I am using USB5807 for USB Hub, and initially while testing I was able to detect 3.0 devices, but later 3.0 Devices were not working on it. But the 2.0 Protocol and devices are working completely fine.
 
Also, I am unable to connect to MPLAB Connect, is there any configuration that needs to be done on hardware for this?
 
Note: I have used complete design reference of USB507 EVK and the device USB Hub is also connected to 3.0 Port on Up Stream Port.
 
Regards,
Ajit Wadekar