A standard USB cable will work well - there's nothing special about the cable.
However, I doubt that your problem is hardware related - it's not likely the USB physical connector on the HD500. It's most likely a system software problem. Try these troubleshooting steps:
- use a different usb port on your computer. Make sure it is USB 2.0 - older usb implementations will not work.
- do not use any usb hub
- try removing other usb devices to identify a potential conflict (particularly a Logitech webcam).
- try uninstalling and reinstalling the HD500 driver. Use Line 6 Monkey.
Had my HD PRO up and running last night with the HD PRO Edit, but now the Edit is not able to find the HD PRO. Tried to re-instal the Edit, but still the same probleme. I phurchased it two days ago from my local autorized dealer!
Help I want to set up my big rig with HD PRO, Liquid Foot Pro, RJM RG-16, 5 pedals, a custom made 3 channel tube preamp + 2 Egnater Rebel 30 Heads. No I`m not close to complete the rig build as I`m not able to communicate with the HD PRO from the HD PRO EDIT.....