Required Port 443 For Veeam Backup & Replication Is Occupied By Another Application < Top 100 Genuine >

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:

TCP 0.0.0.0:443 0.0.0.0:0 LISTENING 1234 TCP [::]:443 [::]:0 LISTENING 1234

Go to Edit > Preferences > Shared VMs . Click Change Settings , then either disable sharing or change the port to something else (like 4443). B. IIS (Internet Information Services) If the Veeam server is intended to be

: Stop the conflicting service just long enough to complete the Veeam upgrade. However, be aware that Veeam may fail to function correctly after the upgrade if the other application reclaims the port. Step 3: Changing the Port Post-Installation

The first step is to find out which process is "squatting" on port 443. IIS (Internet Information Services) : Stop the conflicting

: For production stability, Veeam recommends installing VBR on a dedicated server to avoid resource and port conflicts with other critical business applications. reconfiguring a known service like IIS or Hyper-V to free up port 443?

Authentication and traffic routing for the Veeam self-service web UI and REST API. Step 1: Identify Which Application is Using Port 443 : For production stability, Veeam recommends installing VBR

Veeam Backup & Replication requires TCP Port 443 specifically for its . This service acts as the secure communication channel (using HTTPS) between the Veeam Backup Server, Backup Proxies, Backup Repositories, and Managed Servers (vCenter/ESXi/Hyper-V).

Once you know what application is using the port, choose one of the following methods to resolve the conflict. Solution 1: Stop and Disable the Conflicting Service