hi i already did all of that :
1. I restarted origin client and my computer multiple times.
2. I reinstalled game again.
3. I tried to use internal origin "repair" mode.
4. Always running origin as administrator.
i will try today in the evening to flushDns and cleanBoot. ports are opened because i have also other origin game Star Wars Battlefront and its working with no problem.
also error message directly indicates on some connectivicty to activation error. that never happened to me before, so i am very suprised, because playing many games on different platforms from steam to origin.