Veeam Backup & Replication uses various ports for communication between components, including the Veeam Backup Server, Proxy Servers, and Repository Servers. One of these ports is TCP 443, which is typically used for HTTPS traffic.
Third-party web servers or monitoring tools installed on the backup server might host their admin consoles on HTTPS.
Elias, the senior systems engineer, gripped his coffee mug like a lifeline. The Veeam Backup & Replication console was displaying a sea of red. The job—dubbed "Critical-VMs-Offsite"—had failed. Again.
Process ID 4988. The culprit.
Reconfigure the web server configuration file ( .conf ) to listen on a custom port. tomcat.exe Third-party management tools or print servers Modify Tomcat's server.xml connector port string. Step 2: Resolving the Conflict
Major Issues After Upgrading to Veeam V13: Port 443 Conflict
If the conflicting software cannot be moved or disabled, you can configure Veeam components to use an alternative port. Adjusting Enterprise Manager Port Configurations Veeam Backup & Replication uses various ports for
Veeam utilizes port 443 for HTTPS traffic across several core operations:
How to Fix: Required Port 443 for Veeam Backup & Replication is Occupied
Once you know what application is causing the issue, you must stop it to free up the port. Elias, the senior systems engineer, gripped his coffee
Select the https entry, click , and change the port from 443 to an unassigned alternative (e.g., 8443 ). Scenario B: If VMware Workstation is using Port 443
: Edit the httpd.conf or server.xml file for that software to change the listener port from 443 to another custom port. Step 3: Freeing the Port Immediately