this is the latest alert from MS August 10, 2022 10:28 AM · Quick update We're looking at recent changes made within the Microsoft-managed infrastructure and reviewing endpoints that are leveraging TLS 1.2. Additionally, we're contacting firewall partners to assist our investigation. This quick update is designed to give the latest information on this issue. August 10, 2022 9:53 AM Title: Some users may be unable to connect to multiple Microsoft 365 services. User Impact: Users may be unable to connect to multiple Microsoft 365 services. More info: Impacted services include, but are not limited to: - Outlook desktop client - OneDrive for Business - Microsoft Teams Current status: After analyzing system telemetry and Fiddler logs from impacted users, we suspect that third-party firewall devices are potentially blocking legitimate Microsoft traffic. Affected customers have reported that disabling firewall rules blocking TLS 1.2 is mitigating impact. We're continuing our investigation into the underlying cause. Scope of impact: At this time, impact appears to be specific to some users who are served through the affected infrastructure. Next update by: Wednesday, August 10, 2022, 11:30 AM (3:30 PM UTC)
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