Required Port 443 For Veeam Backup Replication Is Occupied By Another Application Link [better] <2024>
netsh http show urlacl | findstr :443 This will list all URL reservations. Look for something like: http://+:443/ or https://+:443/ reserved for a specific user or service group (e.g., NT SERVICE\SSRS ).
The full error typically reads: "Required port 443 for Veeam Backup & Replication is occupied by another application. Please specify another port or stop the application that uses this port and try again." While the error message seems straightforward—"another app is using the port"—the resolution is rarely a simple matter of killing a process. Port 443 is the default port for HTTPS (HTTP Secure) traffic, and in a Windows Server environment, multiple roles, services, and third-party applications compete for it. netsh http show urlacl | findstr :443 This
Remember, port 443 is prime real estate. Decide which application—Veeam or the existing service—is more critical for your environment, then adjust accordingly. With the steps above, you’ll have Veeam Backup & Replication listening securely and ready to protect your data. Need further assistance? Visit the official Veeam R&D Forums or open a support case with Veeam Customer Support. Include the output of veeamportssniffer.exe (available in the Veeam ISO tools folder) for rapid troubleshooting. Please specify another port or stop the application
The number 4488 is the PID. Now, find the process name: and in a Windows Server environment
Introduction In the complex ecosystem of data center management, Veeam Backup & Replication has established itself as a gold standard for virtualization and cloud data protection. However, even the most robust platforms can encounter frustrating roadblocks. One of the most common and cryptic errors that administrators face during installation or upgrade occurs when Veeam attempts to bind to Port 443 .
netsh http delete urlacl url=http://+:443/ netsh http delete urlacl url=https://+:443/ After deletion, restart the Veeam services or the installer. If w3wp.exe or inetinfo.exe is the offender, IIS is running. You have three choices:
Run this command in an elevated CMD or PowerShell: