Required Port 443 For Veeam Backup Replication Is Occupied By Another Application Link [work] -

When port 443 is occupied by another application, Veeam Backup & Replication may exhibit the following symptoms:

Applications running locally—such as VMware vCenter components, internal monitoring agents, or remote management software—often bind to 443. How to Identify the Conflicting Application

Select your site under the Connections tree, and click in the right-hand panel. When port 443 is occupied by another application,

If the PID belongs to w3wp.exe or System , IIS is likely hosting a website on port 443.

Apps like Tomcat, Apache, or agent managers often bind globally to all local IP addresses on port 443. Apps like Tomcat, Apache, or agent managers often

If is the cause, go to Hyper-V Settings > Replication Configuration and change the port from 443 to another value (e.g., 444).

: Co-locating management tools that use embedded web servers. The most reliable solution is to follow Veeam's

The most reliable solution is to follow Veeam's recommendation: "we do not expect the backup server to be shared with 3rd party apps as that commonly leads to unpredictable behavior". Ideally, dedicate a server exclusively to Veeam Backup & Replication.

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