Hi,
I had this issue and it was caused by bad ACP cabling and configuration. After reviewing cabling, I reconfigured ACP and it is all good (modules status were suppressed by me):
Alternate Control Path: Enabled
Ethernet Interface: e0P
ACP Status: Active
ACP IP Address: 192.168.1.153
ACP Domain: 192.168.1.0
ACP Netmask: 255.255.255.0
ACP Connectivity Status: Full Connectivity
Alternate Control Path: Enabled
Ethernet Interface: e0P
ACP Status: Active
ACP IP Address: 192.168.1.26
ACP Domain: 192.168.1.0
ACP Netmask: 255.255.255.0
ACP Connectivity Status: Full Connectivity
Regards,
Pedro Rocha.
Kind Regards,
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Pedro Rocha