I downgraded X86 ROS 5.7 with a L4 license to ROS 4.17 . Now I get a boot error .. something about "license expired", but it disappears quickly. I had a full L4 license and not a L0. Does anyone know why this is happening and how the installation can be restored?

Thanks
GL

NetInstall will help to restore the system, but it will erase configuration, so you will need to use backup or configure from scratch