A20 and hub usb to have more than two usb

[artone]

We noticed that the A20  does not work with  a  usb Hub.

We need more  than two usb, someone have any suggestion?

Thanks in advance

[martinayotte]

I've used USB hub with my A20-Micro without any problems.
Try with a different hub, the current one is maybe the culprit.

[artone]

can you tell me witch hub used?

we used a hamlet husb420 with external power supply.

Thanks

[martinayotte]

In my case, simple chinese 4 ports USB hub found on eBay worked.
"lsusb" was showing them as "Genesys Logic, Inc. USB 2.0 Hub"