Required Port 443 For Veeam Backup & Replication Is Occupied By Another Application May 2026

Fixing the "Port 443 Occupied" Error in Veeam Backup & Replication

Resolution Method 3: Uninstalling Unnecessary Components

If the Veeam server is intended to be a dedicated backup appliance and IIS or other web services were installed accidentally or are not needed: Fixing the "Port 443 Occupied" Error in Veeam

4. Resolution Approaches

A. Stop the conflicting service (temporary fix)

• If IIS: iisreset /stop or disable Default Web Site.
• If Skype/Teams: Exit the application fully.
• If SSRS: Stop SQL Server Reporting Services.

Or in PowerShell: