Dial disconnects ~30 seconds after initial startup

[zjt48162]

The dial successfully connects a few seconds after powering on the controller, and I'm able to control the machine briefly. But it won't stay connected and reverts to the N/C state after a short period of time, even with zero motion. Controller is on the latest release (3.7.16), and dial firmware was built today.

Tx and Rx lines measure at 0.6 ohms each; wiring is not damaged.

I can provide logs, but I'll need instructions on how to get them. Thanks.