I have version 1.06 software, signal drops out usually w/i 2-4 sec. Last weekend I double checked the connections on both ends of the cable and all wires appeared to be in correct position and in good condition.
Don't know what to try next.
1.06 isn't the latest version of any of our products' firmware.
I suspect that the EDC firmware is not matched to the EFIS. In this case, you simply need to update your firmware with the EDC attached to get everything working again.