The Microsoft 365 connectivity test can help to identify the root cause of that problem and provide a targeted performance improvement action. Network insights in the Microsoft 365 Admin Center will show that there's a networking problem at a specific office location. In-product testing is limited, and running tests local to the user collects more data resulting in deeper insights. In comparison, network insights from the Microsoft 365 network connectivity test are run locally in the tool. Network insights in the Microsoft 365 Admin Center are based on regular in-product measurements for your Microsoft 365 tenant, aggregated each day.

The network connectivity test tool supports tenants in WW Commercial but not GCC Moderate, GCC High, DoD or China. It's important to sign in to your Microsoft 365 tenant as all test reports are shared with your administrator and uploaded to the tenant while you are signed in.

It's an adjunct tool to the network assessment and network insights available in the Microsoft 365 admin center under the Health | Connectivity menu. The Microsoft 365 network connectivity test tool is located at. Microsoft 365 network connectivity test tool

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