When port 443 is occupied by another application, it creates a significant conflict that can prevent Veeam Backup Replication from functioning correctly. This occupation can occur due to various reasons, such as:
If you can’t stop the other application (e.g., it’s another critical backup tool), you have two options:
Right-click and restart the and Veeam Broker Service . To help find the quickest fix, tell me: When port 443 is occupied by another application,
To help narrow down the quickest workaround for your specific backup server setup, could you share:
TCP 0.0.0.0:443 0.0.0.0:0 LISTENING 1234 If you have a converged environment where your
Is this a Veeam server or is it managed by a Service Provider (VSPC)?
If you have a converged environment where your Veeam server is also a Hyper-V replica server, you will need to change the replication port. Open the on your host. Right-click the Hyper-V host and select Hyper-V Settings . Go to the Replication Configuration tab. Go to the Replication Configuration tab
For deeper connectivity troubleshooting, you can refer to the Veeam Ports Finder Tool to map out all required communications.
Resolving Port 443 Conflicts in Veeam Backup & Replication v13
What or shared hypervisor host is VBR running on?
What or PID showed up in your netstat search?