wow....... that was my problem! Both readers were 6" apart. After I move them to 15" apart, both can read tags simultaneously. So where to I mail the bottle of champagne?

Thanks for the help!

I've modified some example code to create 2 objects, controlling 2 RFID 1024 readers on a Windows 10 computer. When each reader is independently connect, both readers work perfectly. However, when both are connected to the same computer, neither device reads. My code is below. Can someone please off...