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[Virtualbox Lan] Bridged Mode failed to open a session

Posted: 2. May 2016, 12:54
by Ostibase
Hello everyone !

I would like to connect in LAN a VM on my computer and my phone together. So, I tried the "Bridged mode" but Virtualbox displayed "Virtualbox failed to open a session for the virtual machine" as error message. If you have any ideas about the way to fix it please ? I searched on Internet but I find no proper solutions.

Thank you in advance !

Best regards,

Re: [Virtualbox Lan] Bridged Mode failed to open a session

Posted: 7. May 2016, 14:52
by Ostibase
UP !

Do you need screenshots, log or other informations so that you can help me ?

If you have any ideas, even not great, say it please, it would help me a lot !

Thank you in advance!

Best regards,

Re: [Virtualbox Lan] Bridged Mode failed to open a session

Posted: 7. May 2016, 17:14
by Perryg
Post the guests log file ( as an attachment ). Right click on the guest in the Main Manager then click show log. Save and post as an attachment. Compress if it is too large to post. Then someone can proceed. Also explain how you are connecting the phone.

Re: [Virtualbox Lan] Bridged Mode failed to open a session

Posted: 9. May 2016, 12:14
by Ostibase
Here is a link to download the log (format txt) : http://www.filedropper.com/logvb
Here is a link to see a screenshot of my configuration under the "bridged mode" (my VB is in french, so "bridged mode"="accès par pont") : http://hpics.li/36a5b7b

My aim is to connect a cellphone and a Jitsi (software like Skype) installed on my computer together thank to an IPBX. But for now, the most important is just to start successfully VirtualBox in "Bridged mode" because this mode can link those 2 clients (phone and Jitsi).

Do you need other informations ?

Thank you for your help !

Re: [Virtualbox Lan] Bridged Mode failed to open a session

Posted: 9. May 2016, 13:35
by BillG
Reread Perry's post. He did not ask for a link to some file sharing site. He asked you to attach the log to your post. Use the Upload attachment tab below the reply window.

How is your LAN configured? Do you have a DHCP server running on it? What bridged mode does is allow the vm to share the host's physical NIC. The guest should behave just like any other machine on the LAN. If you have a DHCP server, it should get its config from there, just as the other LAN machines do.

Re: [Virtualbox Lan] Bridged Mode failed to open a session

Posted: 9. May 2016, 14:16
by Ostibase
Here is the log (format txt)
logVB.txt
Log VirtualBox, txt format
(44.14 KiB) Downloaded 10 times
Here is a screenshot of my configuration under the "bridged mode" (my VB is in french, so "bridged mode"="accès par pont") :
VM Bridge configuration
VM Bridge configuration
vm_bridge.jpg (75.67 KiB) Viewed 1355 times
For DHCP Server --> I don't believe I actually use this protocole. My IPBX doesn't seem to act like a DHCP Server. An IPBX uses the SIP Protocol normally.

Besides, my problem is not yet to configure well my network, but rather to start my Linux on Virtualbox without bug and in "Bridged mode". Some friends configured their VirtualBox in the same way as me and for the same purposes but it worked perfectly for them. That's why I think that the use of my VB isn't probably the origin of my bug.

Thank you again for your help !

Best regards

Re: [Virtualbox Lan] Bridged Mode failed to open a session

Posted: 9. May 2016, 14:32
by Perryg

Code: Select all

00:00:01.226356 Executable: H:\VirtualBox\Portable-VirtualBox\app64\VirtualBox.exe
We do not support Portable-VirtualBox. You need to ask them