arduino throught USB Hub

Using Arduino Project Guidance
1

Hi!

I am using a USB Hub to connect 4 arduinos to my computer. The main reason is that I do not have 4 USB ports in all the computers I use, but also because I am receiving midi signals from the arduinos in my computer.

The last months I have been struggling when uploading sketch to the boards. Arduino Ide was frozen when uploading, or giving me AVR dude errors, and several other things.

I have now disconnected the hub and connected all my boards to a computer with 5 usb connectors, and all the sketches went up very easily. So the question is, is it possible that the USB Hub was interfiering with the uploading sketch process?

2

Maybe. Was it a powered hub? 4 Arduinos can easily draw more current than the single USB on your computer can provide. If you're plugging in that many then you really should have a hub which has a separate power supply.

3

indeed it is a powered usb-hub. so that is not the problem

4

I tried it now with a non powered hub and works much better, but still much less often I have some little problems