Connecting a Conexio Stratus Board to LTE Link Monitor

I have a conexio stratus board that I would like to debug the modem with the LTE Link monitor.  I am not using the Zephyr frame work, but I can flash pre-compiled hex files built with Zephyr.  I flashed the AT_Client hex file to the Stratus, connected the board, and the connection only shows up when unchecking the "supported devices only" box.  It shows up as `CP2102N USB to UART Bridge`.  The Log window shows `Modem port is opened` but AT commands just time out.  I assume from reading other posts this is a certificate issue? 

Thanks,

Daniel

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