Veeam Backup & Replication (VBR) v13 is a mandatory, hardcoded requirement for the new Veeam Web Service/API Gateway
Execute the following command to look for active connections on port 443: netstat -ano | findstr :443 Use code with caution.
While it is possible to force Veeam to use alternate ports, the industry-standard approach is to dedicate the backup server to Veeam workloads. Resolving the port conflict by moving or removing the conflicting application (usually IIS) ensures that Veeam operates within its default architectural design, minimizing connectivity issues with remote repositories and guest proxies in the future. Veeam Backup & Replication (VBR) v13 is a
Major Issues After Upgrading to Veeam V13: Port 443 Conflict
Look for a DWORD value named RestApiPort or ServicePort (refer to specific Veeam version documentation for your exact architecture). Major Issues After Upgrading to Veeam V13: Port
(if both Veeam Backup Server and EM on same server):
If installed on the same machine, VMware management services will contest this port. Veeam Backup & Replication (VBR) v13 is a
The "temporary disable" method is a recognized workaround for the upgrade process, but Veeam support has officially stated there is no supported method to change the Veeam Web Service port afterward.
Applications with their own web-based management consoles frequently occupy this port. Resolution Strategies Veeam B&R 13 Change Web Service Port 443