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Windows Agent / PV-Tools

Common issues with Windows PV tools.

Windows Management Agent failed to install​

Cause​

There was an issue with the installing of the drivers certificate, so the drivers did not load silently.

Solution​

Resolved with version 8.2.2.200-RC1 and newer.

PV-Drivers missing in the Device Manager​

Cause​

If despite running the Windows tools installer, there's no devices visible in the device manager, it's likely because there's some leftovers from old Citrix XenServer Client Tools.

Solutions​

Leftovers from old Citrix XenServer Client Tools.​

  1. remove any xen*.* files from C:\Windows\system32 like
    • xenbus_coinst_7_2_0_51.dll
    • xenvbd_coinst_7_2_0_40.dll
    • xenbus_monitor_8_2_1_5.exe
    • and similiar xen*_coinst and xen*_monitor files
  2. remove any leftover XenServer devices from device manager, also display hidden XenServer devices and remove them!
    • To show hidden devices in Device Manager: View -> Show Hidden Devices

There was an issue with the installing of the drivers certificate, so the drivers did not load silently​

Resolved with version 8.2.2.200-RC1 and newer.

Network PV drivers aren't working.​

Cause​

If the tools are installed, while XCP-ng Center says that I/O is optimized, but the network card is not correctly installed and the Management Agent is also not working. There was an issue with the installing of the drivers certificate, so the drivers did not load silently.

Possible Solutions​

  • Resolved with version 8.2.2.200-RC1 and newer.

  • Clean your system from Citrix Client Tools AND XCP-ng Client Tools to create a clean state.

  • Then install the Client Tools from scratch.

This Guide may help you through the process.

Not all PV drivers are correctly installed​

Cause​

It's possible that some antivirus blocks the end of the installation of the PV drivers. We've seen this happening with SentinelOne AV already (see this thread).

Solution​

Simply pausing the agent and doing a reboot will make the XenTools to install succesfully. After a succesfull installation, enabling the SentinelOne agent again is possible without any other issues regarding the tools or drivers.