Oculus PC app stopped working

[nemukotora]

Please help! 
My Oculus Quest 2 was working fine with the same PC before using the Oculus PC app with Link (USB). 
The Oculus PC app stopped working. The last time I'm sure it has worked fine for me was on June 12th. My windows, nvidia, etc are up to date. Internet connection works well. Tried reinstalling/repairing the app. I've looked through various solutions here/on reddit/google with no positive results. 
The mobile app seems to work fine and can see my Quest2.
My Quest 2 seems to work fine as well. But I want to play PCVR. 

After login the app is stuck at trying to load. It keeps creating log files and opening itself many times. 

Some errors from the log file:

07/09 20:43:48.322 {WARNING} [InterfaceManager] Failed to find interface factory 'GetOVRInterfaceFactory' in library 'D:\Oculus\Support\oculus-runtime\server-plugins\RiftS\RiftSTracker.dll', error 127

07/09 20:43:53.281 {!ERROR!} [PluginManager] Failed to load HeadsetPlugin: EmulationPluginAddition; got error code: -1010

07/09 20:43:53.282 {!ERROR!} [RemoteHeadset] Failed to open cert pem file.


07/09 20:43:53.306 {DEBUG} [xrstreaming] Creating nVidia encoder
07/09 20:43:53.307 {INFO} [RemoteHeadset] <!--OVRServer::Initializing:GPU selected: "NVIDIA GeForce RTX 3070 Laptop GPU", VendorId = 0x10DE, DeviceId = 0x249D>
07/09 20:43:53.307 {INFO} [RemoteHeadset] Airlink secure connection enabled, starting tls listener
07/09 20:43:53.307 {DEBUG} [xrstreaming] Creating nVidia encoder
07/09 20:43:53.308 {INFO} [RemoteHeadset] <!--OVRServer::Initializing:GPU selected: "NVIDIA GeForce RTX 3070 Laptop GPU", VendorId = 0x10DE, DeviceId = 0x249D>
07/09 20:43:53.308 {!ERROR!} [RemoteHeadset] Failed to open cert pem file.

This is very frustrating. It was surely working before. And reinstalling it didn't help. 

[MetaQuestSupport]

Howdy! We see you're experiencing issues with Oculus Link while utilizing the Oculus PC app. As this can really enhance your VR experience, we'd love to take a look at this. If you can, try uninstalling and reinstalling the PC app as this may help. Please continue with the following steps:

1. Disconnect the Rift/Link cable from the computer
2. Disconnect your computer from the internet
3. Backup any necessary content. You can find steps on how to do so by clicking here.
4. Reboot into Safe Mode. You can find steps on how to do so by clicking here.
5. Uninstall the Oculus PC app using the Control Panel. You can find steps on how to do so by clicking here.
6. Delete all Oculus folders from the following folder: C:\Program Files
7. Remove any Oculus folders from the following locations:
   1. C:\Users\YourUserProfile\AppData
   2. C:\Users\YourUserProfile\AppData\Local
   3. C:\Users\YourUserProfile\AppData\LocalLow
   4. C:\Users\YourUserProfile\AppData\Roaming
   5. C:\OculusSetup-DownloadCache
8. Restart your computer in normal mode
9. Reconnect your computer to the internet
10. Install the Oculus PC app again using the setup tool from our website here
11. Reconnect the Rift/Link cable and re-test the headset.

Get in touch with us at your earliest convenience!

[Macproracer]

As usual Meta talking rubbish - try this for simple solution

https://communityforums.atmeta.com/t5/Get-Help/Oculus-Link-Issue/td-p/1081553/page/2

[Macproracer]

Sorry - this is the correct page - "if it works pass it on"

https://communityforums.atmeta.com/t5/Get-Help/Oculus-Link-Issue/m-p/1081622#M230795

[nemukotora]

Will try both solutions above and let you know. Thanks!

[nemukotora]

Hi there,
Did all of the steps above,
logged into with my Facebook account.
Then I get "Can't reach Oculus service".
While at the same time it endlessly tries to open/load creating a bunch of copies of itself:



Part of the logs:

10/09 16:53:32.454 {INFO} [FirmwareVersions] Initializing subsystem
10/09 16:53:32.454 {INFO} [FirmwareVersions] Reading firmware file: '"C:\\Program Files\\Oculus\\Support\\oculus-runtime\\server-plugins\\Firmware/firmware_km.zip"'
10/09 16:53:32.467 {INFO} [FirmwareVersions] Successfully loaded firmware file with sections: km04_hmd km04_touch km05_hmd km06_hmd km07_hmd km08_hmd
10/09 16:53:32.469 {DEBUG} [xrstreaming] Creating nVidia encoder
10/09 16:53:32.469 {INFO} [RemoteHeadset] <!--OVRServer::Initializing:GPU selected: "NVIDIA GeForce RTX 3070 Laptop GPU", VendorId = 0x10DE, DeviceId = 0x249D>
10/09 16:53:32.470 {INFO} [RemoteHeadset] Airlink secure connection enabled, starting tls listener
10/09 16:53:32.471 {DEBUG} [xrstreaming] Creating nVidia encoder
10/09 16:53:32.472 {INFO} [RemoteHeadset] <!--OVRServer::Initializing:GPU selected: "NVIDIA GeForce RTX 3070 Laptop GPU", VendorId = 0x10DE, DeviceId = 0x249D>
10/09 16:53:32.472 {!ERROR!} [RemoteHeadset] Failed to open cert pem file.
10/09 16:53:32.472 {INFO} [RemoteHeadset] Validating Cert and Key retrieved from store...
10/09 16:53:32.491 {WARNING} [Crash Uploader] Crash report f710c94c-949b-48d2-adda-ba9e90be9d64.dmp upload failed with error: OVR40779122
10/09 16:53:32.493 {WARNING} [Crash Uploader] Crash report b089d4b2-f1f2-4b97-a251-859705a2633c.dmp upload failed with error: OVR40779122
10/09 16:53:32.518 {WARNING} [Crash Uploader] Crash report fba5621a-76fd-4c60-8446-14c4c4fd26bd.dmp upload failed with error: OVR40779122
10/09 16:53:32.520 {WARNING} [Crash Uploader] Crash report d58996e3-abca-4c29-bc0d-2d08f6a7bbba.dmp upload failed with error: OVR40779122


After all of this I tried removing 
RemoteHeadset.dll and RemoteHeadset_v55.dll
from
C:\Program Files\Oculus\Support\oculus-runtime\server-plugins

Once this was done the app would start (skipping the endless loop?). But then I can't connect my headset - it won't see the usb cable at all. (the cable 100% should work). And I get the general USB popup in the quest 2 screen. Tried both option with access enabled and disabled. 

Tried enabling PTC for my headset using the Android app. The Quest 2 still won't connect to the desktop app.

What does this mean? The app used to work fine. There should be nothing wrong with my account or product. This is very frustrating. This used to work fine for me 😞

[nemukotora]

Thanks for looking into this, unfortunately, this fix did not help. 

[MetaQuestSupport]

Hey there, @nemukotora. Thanks for reaching back out and letting us know that you tried the suggested troubleshooting without any luck. We would like to go ahead and get a better look at your account and get some personal information. So can you please select our name to get to our profile page, or click here. Next, click "Send a Message" to privately message us! Please remember, you must be signed into the community first to send us a private message.

[nemukotora · Accepted solution]

I think I've fixed it. Seems to work fine for me now?

Tried using hidden Admin account - didn't fix the issue.
Then I've tried removing anything Oculus related on my PC including in registry. Reinstalled the app. The issue still seemed to be there.

[RemoteHeadset] Failed to open cert pem file.
The file it's referring to can be found in registry (regedit) under

/HKEY_CURRENT_USER/SOFTWARE/Oculus/RemoteHeadset/AirLinkPairing/CertPath
I suggest to check if the path on the right side looks correct. Fix any possible issues related to language packs, registry and so on. I live in Ukraine and my "user" folder is in cyrillics. Oculus was not able to recognise it at first and showed C:\Users\???????\AppData\Local\Oculus\Airlink\cert.pem instead. 
Replace ????? with correct value and proceed with further step->
a fix for "?????" instead of cyrillics I suggest to check via Google. Because I'm not sure about the perfect solution. 
For examle I've changed some values here:
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Nls\CodePage]
"1250"="c_1251.nls" ...etc
But I've read that this may not be ideal and may cause issues. It works atm though.