Required Port 443 For Veeam Backup & Replication Is Occupied By Another Application

If installed on the same machine, VMware services default to port 443.

Fix: Veeam Port 443 Occupied by Another Application When upgrading to Veeam Backup & Replication v13

: If the Veeam server also acts as a Hyper-V Replica server, change the Hyper-V replication port from 443 to something else (e.g., 444) in Hyper-V Settings > Replication Configuration . If installed on the same machine, VMware services

Veeam Backup & Replication uses port 443 for several vital operations:

netstat -aon | findstr :443

Major Issues After Upgrading to Veeam V13: Port 443 Conflict

Get-NetTCPConnection -LocalPort 443 | Select-Object LocalAddress, LocalPort, OwningProcess, @Name="ProcessName";Expression=(Get-Process -Id $_.OwningProcess).Name Use code with caution. Step 2: Common Culprits and How to Fix Them Step 2: Common Culprits and How to Fix

She realized the truth with a sinking feeling: Veeam, by default, binds to all interfaces. It saw the AcmeCorp agent still technically occupying the port on the secondary IP. Windows Sockets don’t care about your IP segmentation logic—if any process listens on 443 on any IP, no other process can bind to 0.0.0.0. A cold war over a single integer.

Open the , search for cmd , right-click it, and select Run as administrator . A cold war over a single integer

If Veeam Backup Service is stopped, port conflict is likely.

to change the port 443 requirement within Veeam v13. Instead, you must reconfigure or move the conflicting application. Hyper-V Replication