Problem: “Can’t reach Oculus Runtime Service” error message indicates that Oculus Rift application unable to access and communicate with Oculus’s core service which usually happens when:
Cause 1: Settings misconfiguration.
Cause 2: Conflicting with other settings.
Cause 3: Software Update running in the background prevents Oculus from reaching the Runtime Service.
Perform following step to fix Oculus Rift error “Can’t Reach Oculus Runtime Service”.
Content Summary
Solution 1: Install Oculus Patch
Solution 2: Change Date and Time
Solution 3: Launch Oculus application from the directory
Solution 4: Restart Oculus VR Runtime Service
Solution 5: Reinstalling the software
Reference
We’re aware of an issue affecting Rift on PC, and we’re working on resolving now. Stay tuned.
— Nate Mitchell (@natemitchell) March 7, 2018
Solution 1: Install Oculus Patch
Step 1: Navigate to Oculus official website and download the latest released patch.
Step 2: Right-click Oculus Patch and select Run as administrator.
Step 3: Click on Repair option.
Step 4: Restart your computer.
Step 5: If the repair isn’t working, uninstall the existing software and download the entire software package again from official website.
Solution 2: Change Date and Time
Step 1: Press Windows + S, type settings
in the dialogue box and open the application.
Step 2: Click on Time and Language.
Step 3: Uncheck Set time automatically and Set time-zone automatically.
Step 4: Now click on Change underneath Change date and time and set the time to a previous date.
Step 5: Click on Change and restart your computer.
Step 6: Plug in Oculus and try launching its software and check if the problem is solved.
Step 7: If the time change isn’t working, revert the changes and set the correct time.
Solution 3: Launch Oculus application from the directory
Step 1: Press Windows + E to launch File Explorer.
Step 2: Navigate to: C:\Program Files\Oculus\Support\oculus-runtime\OVRServer_x64.exe
Step 3: Right-click it and select Run as administrator.
Solution 4: Restart Oculus VR Runtime Service
Step 1: Press Windows + S, type services.msc in the dialogue box and press Enter.
Step 2: Search for Oculus VR Runtime Service. Right-click it and select Properties.
Step 3: Click on Stop, wait for a few minutes and click on Start.
Step 4: Launch the application and see if the problem is solved.
Solution 5: Reinstalling the software
Step 1: Press Windows + R, type appwiz.cpl in the dialogue box and press Enter.
Step 2: Search for Oculus software, right-click it and select Uninstall.
Step 3: Restart your computer.
Step 4: Download the entire software package again from official website.
Step 5: Install the package and try launching it.
Reference
Oculus Forums: Oculus Runtime Services – Current Status
Oculus Support: Fixing the “Can’t Reach Oculus Runtime Service” error.
Oculus Forums: [Oculus Home/Store Remote Desktop] Can’t Reach Oculus Runtime Service [SOLVED]
Oculus Forums: Patch For “Can’t Reach Oculus Runtime Service” Error