"Failed to load Virtual Network Adapter" error message when trying to connect to VPN

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Technical Level

Solution ID	sk159192
Technical Level
Product	Endpoint Security VPN
Version	E81.x (EOL), E81.10 (EOL), E81.20 (EOL), E81.30 (EOL), E81.30_HF (EOL), E81.40 (EOL), E82.x (EOL), E82.10 (EOL), E82.20 (EOL), E82.30 (EOL), E82.40 (EOL), E82.50 (EOL), E82.55 (EOL), E83.x (EOL), E83.10 (EOL), E83.11 (EOL), E83.15 (EOL), E83.20 (EOL), E83.30 (EOL), E83.40 (EOL), E83.50 (EOL), E84.x (EOL), E84.x (EOL), E84.20 (EOL), E84.30 (EOL), E84.40 (EOL)
OS	Windows 10
Platform / Model	Intel/PC
Date Created	27-Jul-2019
Last Modified	18-Oct-2021

Symptoms

Getting error message "Failed to load Virtual Network Adapter" when trying to connect to VPN.
Trac.log shows the following errors:
[ 13852 13900][17 Jul 12:20:33][] Unable to open '\Device\vna_sc': The system cannot find the file specified.
[ 13852 13900][17 Jul 12:20:33][vna] Failed to open device (\Device\vna_sc): The system cannot find the file specified.
When trying to debug the VNA adapter, you get the following error messages:
vna_utils.exe -d -ap vna kdebug set -b 32000 -a all
Access denied.
Trying to reset the Virtual Network adapter fails:
C:\Program Files (x86)\CheckPoint\Endpoint Connect >vna_utils.exe -d -ap vna kdebug reset
vna::_cpNTopen: Unable to open '\\.\vna_ap': The system cannot find the file specified.
processing vna
processing kdebug
processing reset
vna::_cpNTopen: Unable to open '\\.\vna_sc': The system cannot find the file specified.
vna::priv_cpopen: Unable to open '\Device\vna_sc': The system cannot find the file specified.
vna_kdebug_utils_reset :ioctl failed
: The system cannot find the file specified.
Logs in %SystemRoot%\inf\setupapi* show the following error message:
0xe0000246

Cause

The value of the registry setting "DeviceInstallDisabled" is set to 1, instead of 0.

Solution

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