Loosing licence on reboot
( just reboot machine no update system or something else )
Access to internet ok on this machine

Flash Operator Panel 2 - Invalid license for this install (hostname mismatch)
Can't revoke and register

I can't post ticket on support system ( button loading ... )

If someone have a solution to register again my system

Many thanks for any help

I've received an answer and now it's ok again
Cool

Same here. Can you tell me how did you solve this?