Error when attempting to start VM

[bf109]

Good morning all (my time ),

I was just trying to get host interface networking working on a W2K3 Server VM and after adding a new virtual NIC I attempted to start the VM and got this error:


Failed to open '' for read/write access. Please check the permissions of that node. Either run 'chmod 0666 /dev/net/tun' or change the group of that node and make yourself a member of that group. Make sure that these changes are permanent, especially if you are using udev.
VBox status code: -3100 (VERR_HOSTIF_INIT_FAILED).

I am so new to Linux that I attemted a search in the Ubuntu forums for a fix thinking that it was some sort of permissions issue and I got this thread:

http://ubuntuforums.org/showthread.php?t=953867

...which had a post in it with a command to run, so I tried the command:

sudo chgrp paul /dev/net/tun

...and now the VM has a grayed out "start" choice along with every other choice (can't even get into the settings).

I even tried to disable the virtual NIC, no go.

Any ideas anyone?

[Sasquatch]

Read the Forum Posting Guide for once. You don't give enough info. We're missing the version of VB. Since 2.1, you no longer need TAP interfaces. Are you a member of the vboxusers group? See the VirtualBox FAQ for some more info for how to add yourself to that group.