Required Port 443 For Veeam Backup & Replication Is Occupied By Another Application (Top 50 CERTIFIED)

Troubleshooting: Port 443 Conflict with Veeam Backup & Replication

Log Entry: Day 1, 08:00 GMT

Administrator: Lena Koh, Senior Cloud Architect Location: Global Data Center, Floor 14

"Required port 443 for Veeam Backup & Replication is occupied by another application" In version 13, port 443 is Troubleshooting: Port 443 Conflict with Veeam Backup &

• Change Veeam Backup Enterprise Manager port (separate component).
• Change Veeam REST API port via registry (advanced, not officially supported for main UI).

Method 3: Change the Veeam Backup & Replication Port

Major Issues After Upgrading to Veeam V13: Port 443 Conflict Method 3: Change the Veeam Backup & Replication

• Correctly identified occupying process/reservation.
• Demonstrated safe method to free port 443 (rebind, change IP, SNI, change Veeam port).
• Verified certificate presence and correct private key permissions for Veeam services.
• Applied firewall rules if needed and validated connectivity from client to Veeam via HTTPS.
• Performed and documented rollback steps.