: If your VBR server is also a Hyper-V host with replication enabled, it often claims 443.
If the application occupying the port is unnecessary or can be safely moved, stopping it is the cleanest solution. For example, if is causing the clash: Open the Services snap-in ( services.msc ). Locate the World Wide Web Publishing Service (W3SVC). : If your VBR server is also a
Launch the to ensure it successfully connects to the backup server backup service without network timeout errors. To help find the right fix, tell me: Locate the World Wide Web Publishing Service (W3SVC)
Lena groaned. AcmeCorp Unified Agent. The Swiss Army knife of cybersecurity that had been forced onto every server in the fleet three months ago. It intercepted all HTTPS traffic for deep packet inspection, certificate re-signing, and behavioral analysis. And it had planted its flag firmly on port 443. AcmeCorp Unified Agent
Veeam uses Port 443 (HTTPS) for secure communication between the backup server, cloud gateways, vCenter servers, and various web plug-ins. If another software service claims this port first, Veeam cannot start its transport and management services.