[HCX] VM residing on L2 extended network experiences target router location change unexpectedly

Products

• VMware HCX
• VMware Cloud on AWS

Issue/Introduction

To outline how to troubleshoot this issue if encountered in the future.

Symptoms:
A virtual machine that resides on a MON enabled L2 extended network has their Target Router Location value changed unexpectedly from "OnPrem" location to "Cloud Tier-1".  This can be following a DRS migration or a snapshot being taken of the VM.

Resolution

If this issue is observed please gather the following.

• VM name, Segment name, Time stamp of when this change happened (or if unavailable, time stamp of when the change back fixed the connectivity)
• On-Prem and Cloud vCenter logs
• Gather screenshots of the VM event logs from vCenter around the time stamp of the interruption
• On-Prem and Cloud HCX logs <including the database dump>
• Validate the number of VMs that are residing upon MON enabled segments

Workaround:
Manually change the 'Target Router Location' back to the correct location.

Additional Information

Impact/Risks:
This may result in the VM losing its network connectivity.