I am currently developing a new vehicle based on 1.13, but I found that Ethernet is not working.Pixhawk 6X can start netman,but I can’t connect to the PX4 through “ping”, there is no reply. I use the same firmware on V5X,It can work. Interestingly PX4 6X works normally in firmware version 1.14, perhaps some issues have been fixed on Pixhawk 6X in firmware version 1.14 ,but I can’t find them in the release notes. The new vehicle relies on the mixer, so I am unable to upgrade to version 1.14.
No idea sorry - while Ethernet was supported in v1.13 PX4 Ethernet Setup | PX4 User Guide (v1.13) I’m not sure FMUv6x worked.
I wouldn’t write off upgrading to v1.14. If you can get a mixer to work (hard) getting the new mixing system to work should be trivial for you.