Required Port 443 For Veeam Backup & Replication Is Occupied By Another Application Exclusive [Trending]
To identify the actual application name using that PID, run this command (replace 1234 with your actual PID): tasklist /fi "pid eq 1234" Use code with caution. Common Culprits Occupying Port 443
Look for a DWORD value named XmlServicePort or RestApiPort (depending on your specific Veeam version architecture).
Applications with their own web-based management consoles frequently occupy this port. Resolution Strategies Veeam B&R 13 Change Web Service Port 443
If you run into any road blocks, let me know the occupying port 443 or your current Veeam version so I can provide customized commands. AI responses may include mistakes. Learn more
Fix: Veeam Port 443 Occupied by Another Application When upgrading to Veeam Backup & Replication v13 To identify the actual application name using that
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:
Once you know what application is using the port, choose one of the following methods to resolve the conflict. Method A: Stop or Disable the Conflicting Service
to change its own internal web service port during installation, you must move the application: For Hyper-V: Hyper-V Settings Replication Configuration Change the port from to another available port (e.g., Update your individual VM Replication settings to match. IIS Manager (InetMgr.exe) , right-click the conflicting site, and select Edit Bindings Change the HTTPS port from
When installing, updating, or configuring Veeam Backup & Replication, you may encounter a critical error stating that . Port 443 is the global standard for secure HTTPS traffic, and Veeam relies heavily on it for secure infrastructure communications, REST API access, and cloud plugin integrations. Resolution Strategies Veeam B&R 13 Change Web Service
Web servers or management consoles (like WSUS or a local website) often bind to 443. VisualSVN or Apache: Other web-based management tools. 3. How to Resolve Since Veeam v13 currently has no supported method
If IIS is using 443, you must stop the Default Web Site or change its binding. Open . Expand Sites and select Default Web Site . Click Bindings in the right panel. Select the https binding and click Edit .
Look for a DWORD value named RestApiPort or ServicePort (refer to specific Veeam version documentation for your exact architecture).
Right-click the Start menu and select or PowerShell (Admin) . Type the following command and press Enter : netstat -ano | findstr :443 Use code with caution. Method A: Stop or Disable the Conflicting Service
: If the Veeam server also acts as a Hyper-V Replica server, change the Hyper-V replication port from 443 to something else (e.g., 444) in Hyper-V Settings > Replication Configuration .
Locate port 443 and look at the column to see the executable name. ⚠️ Common Culprits Occupying Port 443
Port 443 is the global standard for HTTPS traffic. On a Windows Server, several common services may already be using it:
: Type netstat -aon | findstr :443 and press Enter .
Veeam Backup & Replication is a popular data backup and recovery solution used by many organizations to protect their critical data. However, during the installation or configuration process, users may encounter an error message indicating that the required port 443 for Veeam Backup & Replication is occupied by another application. In this article, we will explore the causes of this issue, its impact on Veeam Backup & Replication, and provide step-by-step instructions on how to resolve the problem.