[WorksForMe] usb stops net connectivity

[EgonF]

VirtualBox 5.2.0
Host Windows 10
guests
Liniux Mint 17.3 and
Linux Mint 18.2

I installed an external disc via USB to save files from the host - system.

The guests lost the net connectivity. They could not reach 192.168.178.1.

After removing the usb device (after rebooting ?) the connectivity is there again.

Why stops the connectivity?

Egon

[socratis]

Do you have USB networking gear? Do you have any filters?

• Follow a "start the VM from cold-boot" / "observe error" / "shutdown the VM" cycle.
• With the VM completely shut down (not paused or saved), right-click on the VM in the VirtualBox Manager and select "Show Log".
• Save only the first "VBox.log", ZIP it and attach it to your response (see the "Upload attachment" tab below the reply form).

Also, I want to see all the information in USB basics and troubleshooting » #8: Asking for help.

[EgonF]

I started my system normally this morning. So host and guests are running.

After that I was reading your answer. I was looking up "start the VM from cold-boot" but I could find nothing wether in the user guide nor via google.

So I was reading and saving the log of one of my guests. Then I connected my external disc and saved a file. The net connectivity was not stopped. So I cannot reproduce the problem which I described yesterday.

Egon

[socratis]

I was looking up "start the VM from cold-boot" but I could find nothing

Generally speaking, starting a computer from a cold-boot means not a restart, not a resume, but from a complete shut-down state. Warm (re)boot on the other hand is the opposite; saved/paused state for a VM or reboot/wake up for a real computer.

So I cannot reproduce the problem which I described yesterday.

OK, I will mark this then as [WorksForMe].