Error: System.Net.WebException: The operation has timed out

This article applies to Netwrix Auditor 8.0 and above. It explains the nature of the error and provides resolution.
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Symptoms Data collection for a Managed Object for auditing EMC Isilon completed with the following error:
"Cannot read check audit settings: The operation has timed out"
Note: This will not affect data collection functionality but the product will not be able to verify audit on your cluster.
 
Cause You are using Apache HTTP Server version: 2.2.30 and below.
Resolution This issue can be resolved in multiple ways.

Resolution #1. Install .Net Framework 4.5.
  1. On the computer where Netwrix Auditor Administrator Console is installed, navigate to %Netwrix Auditor installation folder%\File Servers Auditing and create the new configuration file named netwrix.fsa.collector.exe.config.
  2. Add the following text to this file:
<?xml version="1.0"?>
<configuration>
<startup>
  <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.5"/>
</startup>
</configuration>

Resolution #2. Upgrade your cluster to 7.2.1.1 version.

Resolution #3. Specify your ServerName for the Virtual Host that hosts port 8080 using Template.
  1. On your cluster, navigate to /etc/mcp/templates and locate the webui_httpd.conf. file.
  2. Edit this file using SSH connection on any cluster node:
<VirtualHost _default_:$$WEBUI_PORT$$>
    SSLEngine on
    SSLProxyEngine on
    DocumentRoot "/usr/local/www/static"
    ServerAdmin
support@isilon.com
    ServerName isi000.rplab.local
   ...
 Where ServerName must be replaced with your cluster name.
 
Resolution #4. Specify an IP address of your cluster instead of FQDN when editing a Managed Object.
  1. In Netwrix Auditor Administrator Console, navigate to Managed Objects -> <Your File Server Managed Object name> -> Items.
  2. Select the required EMC Isilon cluster and click Edit.
  3. On the Configure EMC Isilon Auditing step, enter an IP address instead of FQDN. Click OK to save changes.
Note: IP addresses are assigned automatically to cluster nodes, so you may need to modify your Managed Object again. 
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