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Yes downgrading BIOS (HP BIOS et System Firmware v. 02.13.03 Rev. A Mar 3, 2024) to the previous version for our HP Z1 stations worked. Error 311 was displayed in Vive Business Streaming (which tipped us off) and in the headset we had frame expiration with error 921.

↑ The issue has been resolved as it turns out that on both VR Ready HP Z1 machines, the NVIDIA hardware codec was disabled in the latest bios update (HP BIOS et System Firmware v. 02.13.03 Rev.A Mar 3, 2024) due to a security vulnerability. A rollback to an earlier version fixed the problem. We are now able to use Wi-Fi streaming on the HTC Vive Focus 3 headset again.

Hello, We are currently experiencing an issue with version 1.14.8 and version 1.14.8a when connecting to Vive Business Streaming (updated with v1.0.20.11). The headset connects fine, then I get a "waiting for steamVR" message and then a looping error 921 "frame expired" without being able to stream from my PC. SteamVR is in 2.4.4 and seems to be active when VBS tries to connect, I see that I'm connected to Home on the PC but in the headset I get a 921. Thanks in advance for your help,

Hello, We experienced issues with Vive Business Streaming on one of our test PCs after this update. We're using a Vive Focus 3 with a Wi-Fi 6E streaming connection. The issue is as follows: when a headset is connected to Vive Business Streaming, the HTC Vive Focus 3 controllers are not recognized on this PC. We have connected two different headsets and reproduced the issue each time. By connecting these headsets to a different PC through Vive Business Streaming (same version, same settings), the controllers are correctly recognized (vive_cosmos_controllers) and usable. We've uninstalled Steam, SteamVR, updated the controllers and headset, restarted the computer, but nothing works. Do you have any tips? Thanks in advance,