chuckB

Thanks for the reply. Sometimes we forget to try the obvious. I tried a different cable and it seems to be working fine.

I purchased an Analog Discovery 2( Serial # DABE4D7) from Jameco a couple of years ago. I haven't used it much, the last time was this past summer. Just this past week, I got it out to troubleshoot a problem and discovered it wouldn't connect to my iMac desktop, which is what I used it with last. I also tried it with a MacBook and a Raspberry Pi4B. Not only wouldn't it talk to any of these computers, I'm not seeing the green LED lit up. I don't know what could have happened to it sitting on a desk not attached to anything. Any suggestions on something to try, or should I send it in for repair/replacement? Thanks, chuck Barker