Hello Ronald,
please be aware there is a recognized bug SPR-31767 related to LAN settings done via GUI.
When you do changes to LAN port, port goes disabled for no reason. If you do not notice this and click apply, GE1 is disabled.
See another thread we sorted this out and let me know if this is same situation or your port went down for other reason.
https://community.extremenetworks.com/extreme/topics/wing-express-lan-settings-disable-by-deaultIf you have any more question just ping us back.
Regards,
Ondrej