Virtual Network Adapter Device Driver-Failed

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ardanzzz
Posts: 3
Joined: Tue Apr 07, 2015 11:28 am

Re: Virtual Network Adapter Device Driver-Failed

Post by ardanzzz » Mon Apr 20, 2015 3:12 am

I have problems like you, I hope anyone can help. :)

mesa57
Posts: 153
Joined: Fri Oct 11, 2013 4:00 pm
Location: Netherlands

Re: Virtual Network Adapter Device Driver-Failed

Post by mesa57 » Wed Apr 22, 2015 7:53 am

Try running without UAC and as administrator

michael0205
Posts: 4
Joined: Sat Apr 25, 2015 9:26 am

Re: Virtual Network Adapter Device Driver-Failed

Post by michael0205 » Sat Apr 25, 2015 9:31 am

I'dont know how to run it without UAC and as administrator, please give me a better instruction. by the way i use windows 7

mesa57
Posts: 153
Joined: Fri Oct 11, 2013 4:00 pm
Location: Netherlands

Re: Virtual Network Adapter Device Driver-Failed

Post by mesa57 » Sat Apr 25, 2015 10:16 am

First try to run as administrator :
http://www.7tutorials.com/how-run-progr ... -windows-7

michael0205
Posts: 4
Joined: Sat Apr 25, 2015 9:26 am

Re: Virtual Network Adapter Device Driver-Failed

Post by michael0205 » Sun Apr 26, 2015 5:49 am

when I open the VPN gate client, the UAC doesn't show up anymore, but when create the adapter the UAC show up again. at step new action
http://www.7tutorials.com/use-task-sche ... ac-prompts
which thing i need to browse?

or do i need to done it in risk way with turn my UAC setting to never notice?
Last edited by michael0205 on Sun Sep 18, 2016 5:17 pm, edited 1 time in total.

mesa57
Posts: 153
Joined: Fri Oct 11, 2013 4:00 pm
Location: Netherlands

Re: Virtual Network Adapter Device Driver-Failed

Post by mesa57 » Sun Apr 26, 2015 9:07 am

You need to run the client as administrator. Then when the UAC prompt comes up while creating the network driver, you just need to accept.

michael0205
Posts: 4
Joined: Sat Apr 25, 2015 9:26 am

Re: Virtual Network Adapter Device Driver-Failed

Post by michael0205 » Sun Apr 26, 2015 2:33 pm

it still won't work, i guess the problem is on my computer, i think i give up
Last edited by michael0205 on Sun Sep 18, 2016 5:17 pm, edited 1 time in total.

thisjun
Posts: 2458
Joined: Mon Feb 24, 2014 11:03 am

Re: Virtual Network Adapter Device Driver-Failed

Post by thisjun » Thu May 14, 2015 7:19 am

Do you use any security software?

michael0205
Posts: 4
Joined: Sat Apr 25, 2015 9:26 am

Re: Virtual Network Adapter Device Driver-Failed

Post by michael0205 » Fri May 15, 2015 12:58 pm

Avast security software, windows firewall active.
windows defender never active

thisjun
Posts: 2458
Joined: Mon Feb 24, 2014 11:03 am

Re: Virtual Network Adapter Device Driver-Failed

Post by thisjun » Thu May 28, 2015 6:45 am

I think re-installing Virtual Network Adapter Device Driver after uninstalling the security software may be effective sometime.

Hade
Posts: 3
Joined: Sat Jul 13, 2019 3:31 pm

Re: Virtual Network Adapter Device Driver-Failed

Post by Hade » Sun May 30, 2021 12:52 pm

ardanzzz wrote:
Mon Apr 20, 2015 3:12 am
I have problems like you, I hope anyone can help. :)
Connected to VPN Client "localhost".

VPN Client>niccreate vpn0
NicCreate command - Create New Virtual Network Adapter
Error occurred. (Error code: 31)
Installation of the Virtual Network Adapter device driver failed.
VPN Client>


tried the following:
Run:

sudo ./vpnclient stop
ps -fade | grep vpnclient

And make sure no vpnclient service is running (sudo kill it if necessary).
If you want to see what processes are running use the command
ps -ef

If you want to look up all processes by user bob, this might help

pgrep -l -u root
or
ps -ef | grep root


Then make sure you run vpnclient as root:

sudo ./vpnclient start

And try to recreate the NIC using vpncmd. Works for me.
sudo ./vpncmd
niccreate

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