Due to a change made in Central that coincided with the release of the Thin Installer in January 2018, Windows Server 2008 and Windows Vista clients are failing new installs. In the Central status it may say "Installation Caught Bcrypt Algorithm not available". This is due to moving to a newer algorithm that is not support on Server 2008 or Vista. Note: Server 2008 R2 is not impacted by this issue, as it has an updated Bcrypt library.
Applies to the following Sophos product(s) and version(s) Sophos Central Managed Server 1.5.4Central Endpoint Advanced 11.5.11
Installation will not proceed on these operating systems (Windows Server 2008 and Windows Vista)
A resolution has been deployed and all new installations will succeed on Server 2008; Windows Vista is still effected.
A policy re-render has also been completed and telemetry shows that Windows Server 2008 updating is now working as expected.
No further action required.
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