We’ve identified a network connectivity issue affecting our WebTitan Mac OTG agent on macOS 15.4 and above. This issue appears when SentinelOne (version 24.4.1 or later) is installed.

At this time, it looks like SentinelOne's network extension triggers a bug in macOS 15.4 that interferes with DNS functionality, which in turn impacts our agent's ability to connect.

If your organisation uses SentinelOne (version 24.4.1 or later), we recommend delaying the upgrade to macOS 15.4 until the issue is resolved.

If you do not use SentinelOne, it is safe to proceed with the Mac upgrade.

We’re working closely with SentinelOne to investigate and will share updates as soon as we have more information.