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Network connectivity test TCP Connection results unreliable
My team has spent the last 2 business days trying to get the https://connectivity.office.com/ TCP connection test to complete successfully to appease the Microsoft Unified Support Team. They don't want to take our MS Teams crash diags until they see SSL Interception Detection and TCP connection tests passing successfully. We can't get TCP connection tests to pass, we get one of the following: Success Attempt #1 Success, Attempt #2 Failure Any number of errors to unblock URLs such as (but not limited to) ocsp.digicert.com,ocspx.digicert.com,ocsp.omniroot.com,su.symcb.com,sr.symcb.com,sd.symcb.com,s1.symcb.com,sa.symcb.com We figured it was something with the corporate network but that's not the case. Last night we had about 50 employees try this test from their home (personal) computers that have no connection to our corporation. The TCP Connection test fails on home (consumer) PCs. What's the story with this TCP Connection check?Microsoft 365 network connectivity test hanging on Running web browser tests
Hi community, I have this issue on different devices and from different locations. Whenever I visit https://connectivity.m365.cloud.microsoft/ and want to run the test, I select "Add location" instead of "Automatically detect location", because I'm on a laptop without GPS and don't wont to use the WiFi recognition. I start typing the town, select it from the list of choices, and click on "Run test". Nevertheless, a pop-up comes asking for access to location services, to which I select "Block" After that, the web application gets stuck on "Running web browser tests" and is not showing any results. I had this issue on Windows 10 and on Windows 11, and on Chrome and on Edge. Any idea how to solve this?Released the full version of M365 connectivity test tool (MCT) in GCC environment
I am pleased to announce that we have successfully released the full version of the M365 connectivity test tool (MCT) in the GCC environment today. This investment will ensure excellent network connectivity and user experience across all clouds, including around 5 millions users in GCC. You can find the updated public documentation at [here] and the table below shows the feature comparison across all clouds. Please let us know if you have questions, thanks
Websocket connections to critical Microsoft 365 domains
We continue to get warnings on our tenant regarding Websocket connectivity errors. Full message states: We've detected WebSocket Secure (WSS) failures to the following unified domains. I can't publish the wildcarded URLs here, but you'll know the ones I mean from your M365 admin networking connectivity insights page. I don't understand this as we effectively have those domains whitelisted/bypassing https inspection etc and everything seems to be working as normal. Nothing has been changed as far I'm aware. Anyone else seen this warning in their tenancy? Anything else we can check or try to sort the issue. Or is it just something to note?? We have a support ticket in - but on doing the initial check nothing is showing up. Our networking team have confirmed with me that the connection sends data to Microsoft uninspected. For that reason, it shouldn’t cause the websocket errors that are being reported.
Trace route from M365 (Teams) to my public IP
Hi, We are troubleshooting a voice packet loss issue in Tokyo and we've been able to force our outbound traffic to use a particular provider above IX peering and another provider. How do i see what route the return traffic (from Microsoft) is taking as there could be a few different routes? thanks,Microsoft 365 network connectivity test for Microsoft 365 Copilot Generally Available
I am thrilled to announce that the Microsoft 365 network connectivity test for Microsoft 365 Copilot is now generally available worldwide. Now all the customers can run the most comprehensive connectivity test of the history from https://connectivity.m365.cloud.microsoft . ✌️😁❤️ This release also includes two improvements from the user experience perspective: Enhancing the sign-in experience for smoother user interactions (like SSO) and providing more user-friendly guidance for saving report data. As a result, we can also measure tenant information with sign-in users, giving us better insights into the business impact of the tool. We also fixed a bug in the rich client that previously blocked the test process due to firewall warnings, increasing the completion rate and performance of the tests.
