---
title: "Error Received When Running 8x8 Network Utility Tool"
slug: "error-received-when-running-8x8-network-utility-tool"
updated: 2026-05-17T16:42:19Z
published: 2026-05-21T21:25:00Z
canonical: "help.8x8.com/error-received-when-running-8x8-network-utility-tool"
stale: true
---

> ## Documentation Index
> Fetch the complete documentation index at: https://help.8x8.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Error Received When Running 8x8 Network Utility Tool

## Symptom

An error message is displayed on the PC when trying to run the 8x8 Network Utility Tool stating:

Windows protected your PC

Windows Defender SmartScreen prevented an unrecognized app from starting. Running this app might put your PC at risk.

![](https://cdn.us.document360.io/e3a59e39-abd3-4423-964c-0a4008dc5673/Images/Documentation/nut_error.png)

## Applies To

8x8 Network Utility Tool

Windows PCs

## Resolution

1. In this window, click on **More Info**.
2. Click **Run again**.

## Cause

The firewall settings are blocking the Network Utility Tool from running. Allowing it to run anyway will bypass those settings for this specific application and will allow it to run.