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Connection over network is blocked by network throttling rules

KB ID: 4407
Product: Veeam Backup & Replication | 9.5 | 10 | 11 | 12 | 12.1
Veeam Agent for Microsoft Windows | 4.0 | 5.0 | 6.0 | 6.1
Published: 2023-02-01
Last Modified: 2023-02-07
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Challenge

A Veeam Agent Backup job fails with the error:

Error: Connection over network is blocked by network throttling rules
Error in VBR
Error as it appears in the Veeam Backup & Replication Console
Error in VAW
Error as it appears in the Veeam Agent for Microsoft Windows Control Panel

Cause

This error occurs when a Network Connection Restriction prevents a scheduled job from running.

Solution

To resolve this issue, you will need to identify which network restrictions are in place and then either disable the restriction or change the state of the machine so that the backup is not interrupted by the restriction.

VBR Settings
  • For Veeam Agent for Microsoft Windows standalone deployments, the network restiction settings are in the Settings menu under "Manage Networks."
VAW Settings

Case Example

The most common issue seen by Veeam Support occurs when the remote machine's network connection has been marked as a metered connection and causes the "Restrict metered connections usage" rule (which is enabled by default) to prevent the job from running. In such a situation, a decision must be made to either:

WinMeteredSetting
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