| Event Id | 1566 |
| Source | Active Directory |
| Description | All servers in site %1 that can replicate partition %3 over transport %2 are currently unavailable. |
| Event Information | According to Microsoft: EXPLANATION: All domain controllers in the specified site that can replicate the directory partition over this transport are currently unavailable. USER ACTION: Verify that the network is not down and determine why the domain controllers are not available. |
| Reference Links | Windows Operating System (Active Directory) |
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