Vagrant Box loses network connectivity when host goes to sleep

[Leon Sasson]

Hi there,

I've been using vagrant (1.0.6 dev) with Ubuntu Precise 64 for a while now. Always had this problem but never dealt with it. The time has come.

Often times my box can't connect to the outside internet. I haven't been able to isolate what causes this, but I think it is more probable when the host (Win7) goes to sleep. My solution is simply to reload vagrant and it works fine for a while again. Reloading my box a couple times a day is killing a lot of time.

Any ideas on how to find whats going on?

Thanks.

[Diego Zamboni]

I've seen the same problem on Ubuntu VMs running under VirtualBox (both Vagrant-provisioned and not) on my Mac. I've always solved it by restarting the network with /etc/init.d/networking restart.

--Diego

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[Leon Sasson]

This worked, thanks!

[Billy Te]

Pretty sure this worked for me once (using 'network' on centos, cause 'networking' doesn't exist), but it isn't helping this time..

[Jim Fisk]

Previously I had to run "vagrant reload" each time my ubuntu15 host went to sleep. The following post resolved this issue for me: https://www.virtualbox.org/ticket/13873

Here are the steps:

sudo vim /etc/NetworkManager/NetworkManager.conf

(then add the following to the bottom of the file; "i" starts insert mode in vim)

[keyfile]

unmanaged-devices=interface-name:vboxnet0

(use ":wq!" to write and quit the editor)

I reloaded the VM one more time and after that my connection persisted even after my computer went to sleep.