I've looked through as many of the posts as I can, and haven't really found the information I need.  Sorry if this is redundant.

I just received my first R606.  I have a Windows 10 machine, and went through the steps to plug it in, including updating the drivers.

When I start cgminer, it says it's resetting the device over and over and then fails saying that it didn't find any chips.

I've tried on two different machines to ensure that it wasn't just a single machine.

Is it a bad unit?  Is there anything else I can do to check before I ask for a replacement?

Thank you.