Quote Originally Posted by kmbs-dcd View Post
I've seen a similar issue with an IC-313 attached to KM engine after updating from v2.0 to v2.1. The RIP would sit with the message "establishing serial communications" after the engine went into sleep mode. The only way to reconnect the Fiery and the engine was to power cycle the engine. After a couple of weeks of this the Fiery would never connect to the engine, it would go from "starting" to "exited". I reloaded v2.1 yesterday. So far things appear to be working, but only time will tell.
Had exact issue with a C6100 + IC-313 v2.1. Updated engine firmware and it was resolved. Sorry I don't have the exact firmware version, it was just the latest as of 2 weeks ago.