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Oct 30, 2025
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Update known-limitations.mdx - Windows 365 limitations #26146

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Update known-limitations.mdx - Windows 365 limitations
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Merge branch 'cloudflare:production' into patch-16
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Update known-limitations.mdx
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15 changes: 15 additions & 0 deletions ...flare-one/team-and-resources/devices/warp/troubleshooting/known-limitations.mdx
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Expand Up @@ -159,6 +159,21 @@ Name: connectivity-check.warp-svc
Address: 127.0.2.3
```

## Windows App connection issue with WARP

When the WARP client is active on a local machine, users may be unable to connect to a Windows 365 PC using the [Windows App](https://aka.ms/WindowsApp). This issue does not affect browser-based connections to Windows 365.

To resolve this, exclude specific networks from any relevant WARP [device profiles](/cloudflare-one/team-and-resources/devices/warp/configure-warp/device-profiles/). The required networks are listed under the `WindowsVirtualDesktop` service tag in the [Azure IP Ranges and Service Tags – Public Cloud](https://www.microsoft.com/en-us/download/details.aspx?id=56519) resource (search for `"name": "WindowsVirtualDesktop"`).

Microsoft previously provided a [PowerShell script](https://github.com/microsoft/Windows365-PSScripts/tree/main/Windows%20365%20Gateway%20IP%20Lookup) to retrieve these networks, but it has since been deprecated. The relevant networks are now consolidated to the following subnets:

```
40.64.144.0/20
51.5.0.0/16
2603:1061:2010::/48
2603:1061:2011::/48
```

## Windows 10 in Microsoft 365 Cloud PC is not supported

Use of the WARP client in a Microsoft 365 Windows 10 Cloud PC is not supported. To work around this limitation, use Windows 11.
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