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Cannot start natnetwork.

Posted: 19. Feb 2016, 22:01
by Quellan
I am running Ubuntu 14.04 and Virtual box 4.3.36_Ubuntur105129

Console output to show that:

$:~ $ lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 14.04.4 LTS
Release: 14.04
Codename: trusty

$ VBoxManage --version
4.3.36_Ubuntur105129

I am able to add networks successfully, but when I start them I get the following error:

$ VBoxManage natnetwork add -t nat-int-network -n "172.16.1.0/24" -e
$ VBoxManage natnetwork start -t nat-int-network
VBoxManage: error: Code NS_ERROR_FAILURE (0x80004005) - Operation failed (extended info not available)
VBoxManage: error: Context: "Start(Bstr("whatever").raw())" at line 449 of file VBoxManageNATNetwork.cpp
VBoxManage: error: Failed to start network
$ VBoxManage natnetwork add -t nat-int-network -n "172.16.1.0/24" -e
VBoxManage: error: NATNetwork server already exists

As one can see, after the first attempt, subsequent attempts to create the network complain that it already exists. I did find somewhere else that that Error failure can happen when running Virtual machines without a gui and without adding the --type headless options to the command, the the natnetwork command doesn't have a headless option. So I'm not sure what else I can do.

I'm not running an actual machine, so I don't know where I can find log files, or if any exist. Certainly my home directory doesn't have anything that would contain them.

Re: Cannot start natnetwork.

Posted: 18. Mar 2016, 11:30
by mdlaat
I have exactly the same problem (ubuntu 14.04/virtuabox 4.3.36)
Have you already find a solution?
Thank you