Oculus Rift virtual reality headset owners have been struggling to operate their devices today due to an issue with the Oculus Runtime Service. Users who have tried to open the app have faced an error message stating "Can't Reach Oculus Runtime Service." Technicians at the tech company are currently investigating the problem, which is possibly down to an expired security certificate.
https://www.notebookcheck.net/Oculus-Rift-VR-headsets-defeated-by-runtime-service-issue.287628.0.html