She had been planning this migration for six months. The old tape libraries were being retired. The new all-flash object storage array, affectionately nicknamed "The Vault," was racked and stacked. Veeam Backup & Replication v12.1 was the orchestrator, the brain that would move 4.2 petabytes of financial transaction data from the production cluster to immutable cloud storage. And its control heart—the web UI, the REST API, the service endpoint—needed port 443.
She smiled. Tomorrow's problem. For now, port 443 was no longer a battlefield. It was just a number—two numbers, actually, living in parallel harmony, carrying the future of 4.2 petabytes to safety. She had been planning this migration for six months
When VBR shares a server with other infrastructure roles, several common enterprise applications will naturally trigger this conflict: Veeam Backup & Replication v12
Since Veeam v13 does not currently support changing the web service port via the installer, you must resolve the conflict at the source. Solution A: Reconfigure the Competing Service Tomorrow's problem
Before resolving the issue, it is helpful to identify which application is currently holding the port. Common applications that bind to Port 443 on Windows Server include:
In the left connections pane, expand your server and click .