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How to Fix VMware Replication Not Active Error on Windows 11: Step-by-Step Troubleshooting Guide

VMware replication is a crucial feature for maintaining data redundancy and disaster recovery. However, encountering the “VMware Replication Not Active” error on Windows 11 can interrupt this process and cause concern.

This guide will walk you through simple and detailed troubleshooting steps to help you fix this error. Each step is explained clearly so even beginners can follow along.

By following these instructions, you can quickly restore VMware replication functionality and keep your virtual machines protected.

Let’s get started with some quick checks before diving into the troubleshooting process.

Quick Note: Prerequisites and Initial Checks

Before troubleshooting, ensure the following conditions are met. These quick checks can often resolve issues without deeper intervention.

  • Check VMware Tools Status: Make sure VMware Tools is installed and running on your virtual machines. It helps manage communication between host and guest systems.
  • Verify Network Connectivity: Confirm that both the source and target hosts can communicate over the network. Replication requires stable connections.
  • Confirm VMware Replication Service: Ensure the VMware replication service is running on both source and target servers.
  • Check Windows Firewall: Temporarily disable firewall on Windows 11 to see if it’s blocking replication ports.
  • Verify Storage Space: Ensure there is enough free disk space on target storage for replication data.

Step 1: Restart VMware Replication Service

Sometimes, the simplest solution is restarting the replication service. This can refresh the system and clear temporary glitches.

  1. Press Windows + R to open the Run dialog.
  2. Type services.msc and press Enter to open Services.
  3. Scroll down and locate VMware vSphere Replication Management Server or similar named service.
  4. Right-click the service and select Restart.
  5. Wait a few moments and check if replication status changes to active.

Why this helps: Restarting the service fixes temporary service faults or hung states that may cause the replication to stop.

Step 2: Verify VMware Replication Configuration

Incorrect replication settings are a common cause of the “Not Active” error. Double-check your replication configuration.

  • Open your VMware vSphere Client.
  • Navigate to the Replication section under your virtual machine settings.
  • Check that the source and target hosts are correctly set.
  • Ensure replication schedules are configured and enabled.
  • Confirm that the replication state is not paused or disabled.

If you find any misconfiguration, update the settings and save changes. Then, monitor if the replication status updates.

Step 3: Check Network and Firewall Settings

Network issues or firewall blocks can prevent replication traffic from passing between source and target servers.

  1. Ping the target host from the source host to confirm network connectivity:
ping [target-host-IP-address]

If ping fails, troubleshoot network issues such as cables, switches, or routing.

  1. On Windows 11, temporarily disable the firewall:
Open Settings > Privacy & Security > Windows Security > Firewall & Network Protection > Domain Network > Toggle Off

Try replication again. If it works after disabling firewall, create firewall rules to allow VMware replication ports:

  • Ports 31031 (TCP) and 44046 (TCP) are commonly used for replication.
  • Add inbound and outbound rules to allow traffic on these ports.

Step 4: Review VMware Logs for Errors

Logs contain detailed error messages that can point to the exact problem.

  • Locate VMware replication logs, usually found in C:ProgramDataVMwareVMware vSphere Replicationlogs.
  • Open the latest vrmc.log or similar replication log file with a text editor.
  • Look for error messages or warnings marked with “ERROR” or “WARN”.
  • Use the error codes or messages to search VMware’s knowledge base for specific solutions.

Why this is important: Logs provide the technical details that can help you or support identify and resolve complex issues faster.

Step 5: Reinstall or Repair VMware Replication Software

If none of the above steps work, the replication software itself may be corrupted or improperly installed.

  1. Open Control Panel > Programs & Features.
  2. Find VMware vSphere Replication in the list.
  3. Select it and choose Repair if available. Otherwise, uninstall and then reinstall the software.
  4. Download the latest version from VMware’s official site to ensure compatibility with Windows 11.
  5. Follow the installation wizard carefully and restart your system after installation.

Step 6: Use Advanced Options (Optional)

For experienced users or administrators, additional advanced troubleshooting can help:

  • Reset Replication Relationship: Delete and recreate the replication relationship for the affected VM.
  • Check vCenter Server Health: Problems in vCenter can affect replication. Verify vCenter status and logs.
  • Update VMware Components: Ensure ESXi hosts, vCenter, and replication appliances are updated to compatible versions.

Frequently Asked Questions (FAQs)

Why does VMware replication show “Not Active” after Windows 11 update?

Windows updates may reset firewall settings or disrupt services. Checking firewall rules and restarting replication services often resolves this.

Can network latency cause replication to become inactive?

Yes, poor network connectivity or high latency can interrupt replication. Ensuring stable and fast network connections is crucial.

Is it safe to restart VMware services during business hours?

Restarting services may cause brief downtime in replication. Schedule it during off-peak hours if possible to avoid impact.

How do I know if replication is working properly?

VMware vSphere Client shows replication status as “Active” or “Healthy”. Monitoring logs and alerts also helps confirm it’s functioning correctly.

Does disabling Windows Firewall permanently fix replication errors?

No, disabling firewall temporarily is for testing only. Proper firewall rules should be created to allow replication traffic.

When Nothing Works

If you have tried all the above steps and still face the “VMware Replication Not Active” error, consider these final options:

  • Contact VMware Support: Open a support ticket with VMware for expert assistance.
  • Consult Official Documentation: Visit the VMware knowledge base and forums for specific troubleshooting guides.
  • Consider Backup Alternatives: Use other backup or replication solutions temporarily to protect your data.

Link to VMware official resources: VMware Knowledge Base

Conclusion

Fixing the “VMware Replication Not Active” error on Windows 11 involves a series of logical steps starting from simple service restarts to advanced configuration checks. Always begin with basic network and service validations before moving to software repairs or advanced troubleshooting.

Understanding the importance of each step helps you maintain a healthy replication environment and avoid future disruptions. With patience and systematic troubleshooting, you can restore replication functionality and ensure your virtual machines remain protected.

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