We are seeing the following on a Windows 2016 Server Hyper-V host:

Log Name: Microsoft-Windows-Hyper-V-VMMS-Admin
Source: Microsoft-Windows-Hyper-V-VMMS
Date: 05/12/2017 14:58:05
Event ID: 32315
Task Category: None
Level: Warning
Keywords:
User: SYSTEM
Computer: %computername%.domain.suffix
Description:
Hyper-V failed to replicate changes for virtual machine '%computername%' (Virtual machine ID 036A0EC0-4551-42A1-BFBA-66DC1182ACAC). Hyper-V will retry replication after 30 minute(s).
Event Xml:



32315
0
3
0
0
0x8000000000000000

70262


Microsoft-Windows-Hyper-V-VMMS-Admin
%computername%.domain.suffix




%computername%
036A0EC0-4551-42A1-BFBA-66DC1182ACAC
30




We are attempting to cancel replication sync. and after merge will try and re-sync.

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Also we are seeing the following alongside for each failed re-sync.

Log Name: Microsoft-Windows-Hyper-V-VMMS-Admin
Source: Microsoft-Windows-Hyper-V-VMMS
Date: 05/12/2017 14:58:05
Event ID: 29292
Task Category: None
Level: Error
Keywords:
User: SYSTEM
Computer: %computername%.domain.suffix
Description:
Could not replicate changes for virtual machine '%computername%' as the Replica server 'IPVM1.domain.suffix' on port '80' is not reachable. The operation timed out (0x00002EE2). (Virtual machine ID 036A0EC0-4551-42A1-BFBA-66DC1182ACAC)
Event Xml:



29292
0
2
0
0
0x8000000000000000

70260


Microsoft-Windows-Hyper-V-VMMS-Admin
%computername%.domain.suffix




%computername%
036A0EC0-4551-42A1-BFBA-66DC1182ACAC
%%12002
0x00002EE2
IPVM1.domain.suffix
80

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