This article explains why audio recording might stop when two or more cameras are configured to share the same microphone.
Symptoms
Audio recording might intermittently stop for cameras sharing the same
microphone.
Cause
A code change causes this issue.
Workaround
Restart the Genetecâ„¢
Server service.
Status
This issue is resolved in Security
Center 5.6
SR4 Cu2 and later.