If this happens, simply restart the robot (not just the application) via the webserver over the network connection.
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I do not see a "Restart Robot" button or menu item on any of the pages of the webserver application (H.2.4 F/W).
How do I restart the robot via the webserver?
Update: Elsewhere the docs say that option is only available when using the Create3 WiFi Access Point:
When the robot is acting as an access point, a third option, "Reboot robot," appears.
Tried using button1 10s to standby mode while on dock, but that didn't seem to reboot robot.
Finally took off dock, 10s power button, waited for total shutdown. Then replaced on dock.