Network Extension HA pair degraded after upgrade

Products

• VMware HCX

Issue/Introduction

HCX Network Extension (NE) appliances were upgraded.

NE appliance group shows DEGRADED.

Primary peer is ACTIVE and Standby peer is UNDECIDED as shown below:

The following messages are seen in the logs (common/logs/admin/app.log):

Resume operation failed. Failed to exit Maintenance mode for HA Group

2025-03-05 23:53:23.582 UTC [InterconnectService_SvcThread-#####, IX:#######################, J:########, , TxId: ####################] ERROR c.v.v.h.s.i.h.HAGroupRedeployApplianceJob- haGroupResume failed, errorCode:null. stacktrace:null, errorMessage:HA Resume operation failed. Failed to exit Maintenance mode for HA Group

Environment

HCX 4.10

Cause

The NE appliance failed to exit maintenance mode after the upgrade and resume HA operations.

Resolution

Use the Recover option to restore the NE HA peering to a healthy state.

- Plan a maintenance window, as there may be an outage if the appliances are redeployed.

- Navigate to Interconnect > Service Mesh > HA Management. 

- Select the Recover option at the bottom of the group card.

Additional Information

Managing Network Extension High Availability