After updating my M1 to the newest firmware I was no longer able to connect to the M1 from CQC over ethernet. After troubleshooting I found that the default non secure port was not listening. I first tried redownloading my setting to the M1XEP but that did not help. I ended up unchecking the "Enable Non-Secure Port" in ElkRP, Sending my changes, Rebooting, Re enabling it, resending and rebooting. After this CQC was able to se the M1 with no other Issues that I have found yet.
PS If you where running the Elk M1 INSTEON Beta you will need to relearn all your INSTEON Devices.