I know what a USB Hub is the question was what difference it makes to use it?

Sorry for the misunderstanding...😳

From practice I have seen a computer with it's own USB connector not able to register with a Beo5, was able to do it when I used a Hub between them.

I guess that the Hub makes some kind of changes to voltage levels or timing.

okay, now I got you. Alright that is a good hint I will try that and feedback here, because I have the problem that the USB deregisters when I upload although upload works. Still I will try this because I should have an old HUB somewhere. Maybe it is an electrical issue.

If you have a Beo6, this will give you the "balloons" with error messages during the upload. The upload is handled differently from Beo5 and uses some kind of bootloader. The message appear when the Beo6 reboot after flashing.

yes prior to the figures counting up or respectivley down the USB has several error messages. But what does yor second sentence mean?

That, if you see the message 'USB Device Not Recogniced' in a balloon message (in the area at the clock) then it is normal.

yes that is what I see and you think a hub does not make a difference?

No, the Hub will not make a difference in this case. Only if you have initial problems with the connection.

Whenever I apply a config file to my Beo6 using Configuration Software 4.11 I receive the 'USB Device Not Recognised' message in the ballon whilst the Beo6 appears to power down and power back up as part of the 'configuration download' process. Whilst the configuration file appears to have been applied successfully on usage I find that several of the physical 'hard buttons' on the Beo6 don't respond - presumably due to the time out?  Is anyone else experiencing this difficulty or is there a way to avoid the issue?

I can apply the same configuration file to my Beo5 using the same config file, same config tool on the same PC without the 'USB Device Not Recognised' message.

Any help that could be provided here would be greatly appreciated.

Many Thanks

Graham

as described in this thread that is normal behaviour but the data get transfered. Maybe you try again.