Wireless Joint

Alright, I downloaded the latest firmware 4.9.5-5500-std and manually flashed without saving any configurations. Then i reset factory defaults and then reset modules just for good measure. System log never shows the IMEI of the 2nd module anywhere throughout. It's really making me think the USB port ...

That's a good idea! I will pursue that avenue and report back when I have a resolution. Thanks for the help!