I can log data just fine with just the hand held. I can download scan files from my hand held to the laptop and update PID selections on the hand held. I cannot get the pass through to work. When I hit the connect button in the scan software on the laptop I get an interface not connected. When I try to look at the scan data on the hand held it says it is in pass through mode. I am just a getting my feet wet in this.

The truck is an 08 silverado and was successfully tuned in person about 3 months ago with efilive.

Any ideas? Do I need to pull a fuse or am I not hitting the right buttons in the software?
Thanks