Some users may experience intermittent audio and video degradation when using Microsoft Teams through VDI 2.0

Title: Some users may experience intermittent audio and video degradation when using Microsoft Teams through VDI 2.0 User impact: Users may have experienced intermittent audio and video degradation when using Microsoft Teams through VDI 2.0 More info: Users also intermittently may have been unable to leverage certain feature optimizations provided by VDI 2.0 As a workaround, users could have restarted Microsoft Teams to resolve the issue. Final status: We've monitored service health telemetry for an extended period and confirmed that the impact has been remediated on build version 26246.1604.5133.838. We recommend any user still facing impact to download this specific build version to apply the remediation. Scope of impact: Users who were using Microsoft Teams VDI 2.0 in a Citrix VDI environment may have been impacted. Start time: Thursday, October 1, 2026, at 12:00 PM UTC End time: Tuesday, October 6, 2026, at 11:10 PM UTC Root cause: A recent configuration update to the VDI Bridge component responsible for VDI optimization introduced a regression, resulting in impact. Next steps: - We're reviewing the impacting configuration update to understand why impact to audio and video quality wasn't identified during our pre-deployment testing processes. This investigation will help us to prevent similar issues from occurring in the future. This is the final update for the event.

Title: Some users may experience intermittent audio and video degradation when using Microsoft Teams through VDI 2.0 User impact: Users may experience intermittent audio and video degradation when using Microsoft Teams through VDI 2.0 More info: Users also intermittently may be unable leverage certain feature optimization provided by VDI 2.0 As a workaround, users can restart Teams to resolve the issue. Current status: We're seeing continued success from our mitigation of moving users to a specific build version that doesn't contain the regression, and more monitoring time is needed to ensure this provides a stable resolution for users. Scope of impact: Users who are using Microsoft Teams VDI 2.0 in a Citrix VDI environment may be impacted. Root cause: A recent configuration update to the VDI Bridge component responsible for VDI optimization introduced a regression, resulting in impact. Next update by: Tuesday, October 13, 2026, at 5:00 PM UTC

Title: Some users may encounter intermittent VDI2 optimization loss when using Microsoft Teams in a Citrix VDI environment User impact: Users may encounter intermittent VDI2 optimization loss when using Microsoft Teams in a Citrix VDI environment. More info: Users may experience audio and video quality degradation, and unavailability of certain features. As a workaround, users can restart Teams to resolve the issue. Current status: We’ve implemented an interim mitigation to provide immediate relief and have observed initial signs of improvement. However, we’re continuing to monitor its effectiveness while progressing with validation of a longer-term fix before proceeding with deployment. Scope of impact: Some users who are attempting to utilize VDI2 optimization loss when using Microsoft Teams in a Citrix VDI environment may be impacted. Root cause: A recent configuration update to the VDI Bridge component responsible for VDI optimisation introduced a regression, resulting in impact. Next update by: Monday, October 12, 2026, at 6:00 PM UTC

Title: Some users may encounter intermittent VDI2 optimization loss when using Microsoft Teams in a Citrix VDI environment User impact: Users may encounter intermittent VDI2 optimization loss when using Microsoft Teams in a Citrix VDI environment. More info: Users may experience audio and video quality degradation, and unavailability of certain features. As a workaround, users can restart Teams to resolve the issue. Current status: We’re proceeding to validate the fix before deploying it to the affected infrastructure. Once available, we’ll provide a deployment timeline. Scope of impact: Some users who are attempting to utilize VDI2 optimization loss when using Microsoft Teams in a Citrix VDI environment may be impacted. Root cause: A recent configuration update to the VDI Bridge component responsible for VDI optimisation introduced a regression, resulting in impact. Next update by: Friday, October 9, 2026, at 4:00 PM UTC

Title: Some users may encounter intermittent VDI2 optimization loss when using Microsoft Teams in a Citrix VDI environment User impact: Users may encounter intermittent VDI2 optimization loss when using Microsoft Teams in a Citrix VDI environment. More info: Users may experience audio and video quality degradation, and unavailability of certain features. As a workaround, users can restart Teams to resolve the issue. Current status: We’re continuing to validate the fix before deploying it to the affected infrastructure. Once available, we’ll provide a deployment timeline. Scope of impact: Some users who are attempting to utilize VDI2 optimization loss when using Microsoft Teams in a Citrix VDI environment may be impacted. Root cause: A recent configuration update to the VDI Bridge component responsible for VDI optimisation introduced a regression, resulting in impact. Next update by: Thursday, October 8, 2026, at 4:00 PM UTC

Title: Some users may encounter intermittent VDI2 optimization loss when using Microsoft Teams in a Citrix VDI environment User impact: Users may encounter intermittent VDI2 optimization loss when using Microsoft Teams in a Citrix VDI environment. More info: Users may experience audio and video quality degradation, and unavailability of certain features. As a workaround, users can restart Teams to resolve the issue. Current status: We’ve identified that a recent configuration update to the VDI Bridge component responsible for VDI optimisation introduced a regression, resulting in impact. We’ve developed a fix and are currently validating it before deploying it to the affected infrastructure. We expect to provide a deployment timeline by our next scheduled update. Scope of impact: Some users who are attempting to utilize VDI2 optimization loss when using Microsoft Teams in a Citrix VDI environment may be impacted. Root cause: A recent configuration update to the VDI Bridge component responsible for VDI optimisation introduced a regression, resulting in impact. Next update by: Wednesday, October 7, 2026, at 5:00 PM UTC

Title: Some users may encounter intermittent VDI2 optimization loss when using Microsoft Teams in a Citrix VDI environment User impact: Users may encounter intermittent VDI2 optimization loss when using Microsoft Teams in a Citrix VDI environment. More info: Users may experience audio and video quality degradation, and unavailability of certain features. As a workaround, users can restart Teams to resolve the issue. Current status: As we progress with our root cause analysis and isolate the source for this event, we've isolated an offending code regression that is believed to be producing the problems. We've internally validated a solution that is expected to remediate the impact. We're deploying our solution, and we'll provide an updated timeline for its deployment once it has become available. Scope of impact: Some users who are attempting to utilize VDI2 optimization loss when using Microsoft Teams in a Citrix VDI environment may be impacted. Next update by: Wednesday, October 7, 2026, at 9:00 AM UTC

Title: Some users may encounter intermittent VDI2 optimization loss when using Microsoft Teams in a Citrix VDI environment User impact: Users may encounter intermittent VDI2 optimization loss when using Microsoft Teams in a Citrix VDI environment. More info: Users may experience audio and video quality degradation, and unavailability of certain features. As a workaround, users can restart Teams to resolve the issue. Current status: We're reviewing service monitoring telemetry to isolate the source of the issue and establish a fix. Scope of impact: Some users who are attempting to utilize VDI2 optimization loss when using Microsoft Teams in a Citrix VDI environment may be impacted. Next update by: Tuesday, October 6, 2026, at 5:30 PM UTC