System is off lineb

Let's start with some additional information: You went from which old software version to which new software version? And your dimmer system is connected to the console by DMX or network?

What sort of device is your 1 port DMX? Is it USB based or network based? If you are using ArtNet as the network protocol to the DMX output device, then there is some additional settings in EOS that need to be made, because after the update it defaults to sACN and disabled ArtNet.

Thanks I have ArtNet connection to DMX port, Where would I find the sACN to change setting , where in the shell?

yes and it showboth port 1 and port 2 as offline, thank you for any help.

It is connect byDMX

support.etcconnect.com/.../ArtNet_Configuration_in_Eos_Software

There are some contradicting information here. May I suggest that you reach out to phone support? You can find the contact information here.