Windows Firewall Inbound Port Configuration for Proxmox Backup (code 1962)

Situation

An image-based backup plan finishes with the following warning: Windows Firewall inbound port configuration for Proxmox backup (Code: 1962). The backup plan fails due to a firewall restriction: port 8007 is blocked for incoming connections from the Proxmox host

Cause

The failure occurs because port 8007 is blocked by Windows Firewall for incoming connections from the Proxmox host.

If you are using a third-party firewall, the restriction may be configured there instead.

Solution

Click the solution link in the warning message to automatically configure the Windows Firewall inbound rule. This action creates a new inbound rule in Windows Defender Firewall allowing traffic on port 8007.

You can also create a new inbound rule manually according to your requirements as described below.

If you are using third-party firewall, refer to the firewall provider documentation yo resolve the issue.

How to Create an Inbound Rule for Windows Defender Firewall

1. Open Windows Defender Firewall - Press Win + R, type wf.msc, and press Enter. (This opens Windows Defender Firewall with Advanced Security)
2. In the left panel, click Inbound Rules
3. In the right panel, click New Rule.
4. Configure the new inbound rule for the local 8007 port.

3. Configure and apply the rule.