The Endpoint Agent Client leverages the NPCAP library to support running certain network tests and gather device metrics on Windows devices. The default NPCAP library distributed with the installer is version 1.86.
To confirm the Npcap OEM build present on a Windows endpoint, inspect the DisplayVersion value under the Npcap uninstall registry key (64-bit Windows example):
reg query HKLM\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Uninstall\NpcapInstThe reported version should align with the Npcap build bundled with your Endpoint Agent release; see Endpoint Agent release notes if you need the exact bundle for a specific client version.
Our software undergoes testing against the versions of NPCAP that we distribute. By default, your account group only permits the use of these versions. However, if you are running other software that uses this library, you may have a version of NPCAP installed that is either older or newer than the version we provide. If you'd like to use a different version, just follow these instructions to include it. Please note that you must use a minimum version of 1.0 to use our software.
If you enable another version, please know that our QA process does not test against these other versions. You must test and report any issues to us promptly.
Please open a support case if you experience issues with the upgrade. In some scenarios, ThousandEyes may disable auto-updates temporarily on your production Account Group until the issue gets resolved.
Auto updates are important for stability, security, and product function.
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