[KBA-77786] Cameras do not record if TLS 1.0 is disabled
This article explains why cameras might not record if TLS 1.0 is disabled in Windows.
If TLS 1.0 is disabled, cameras might be unable to record video because the Archiver role is not writing events to the Archiver database.
The Archiver role uses SQL Native Client 2008 R2, which requires TLS 1.0.
Download and install this Microsoft update that enables TLS 1.2 with SQL Native Client 2008 R2.
This issue is resolved in Security Center 5.6 SR4 because the Archiver role no longer requires SQL Native Client 2008 R2.