Major Issues After Upgrading to Veeam V13: Port 443 Conflict
: Veeam recommends installing VBR on a dedicated server to avoid port conflicts with other web-facing applications. Troubleshooting Connectivity Major Issues After Upgrading to Veeam V13: Port
If is the cause, go to Hyper-V Settings > Replication Configuration and change the port from 443 to another value (e.g., 444). Solutions and Workarounds In Veeam v13, port 443
: Frequently conflicting services include IIS (Internet Information Services) , Hyper-V Replication , Remote Desktop Web Access , or third-party security agents like Qualys . Solutions and Workarounds Note that Veeam v13 services will still fail
In Veeam v13, port 443 is used for the . If another service is already listening on this port, the Veeam services will fail to bind, preventing the VBR console from starting or the upgrade from completing. How to Identify the Conflicting Application
: If the conflicting application is only needed occasionally, stop the service, complete the Veeam v13 upgrade, and then attempt to restart the other service. Note that Veeam v13 services will still fail to start if the port is occupied later.