How to ignore a break signal from my DTE to WR21 running the Python Serial to Device Cloud sample?

I’m using the “Python Serial to Device Cloud Sample” with a WR21. It works great with only one exception, when the DTE is powered on, it sends a break signal (tx is held low) this is breaking the serial connection. The Wr21 must be rebooted every morning or after a power outage to reestablish the serial connection. I can use the same Sample application on a Digi Connect Sp and it reads the power up as a framing error, without breaking the serial connection this works great. How do I set the Wr21 to ignore the break signal?