Can't recover the IP when USB2Ethernet adapter is removed and reconnected.

[lokesh]

Heading

IP address not recovered in bridged mode when USB2Ethernet adapter is removed and reconnected.

Description

I'm running VirtualBox-5.0.0-r101573 64bit version on Windows 7 64bit OS, having guest as CentOSv6. The guestos is configured with two network adapters, 1) Host-Only 2) Bridged. When the guestos is booted afresh with the USB2Ethernet adapter connected, the Bridged network obtains the IP properly, But when the USB2Ethernet adapter is removed and reconnected the guestos is unable to fetch the IP and waits indefinitely.

Steps to reproduce

1. Boot the guestos with USB2Ethernet connected.
2. IP should acquire properly.
3. Remove the USB2Ethernet adapter from the System.
4. Try to restart the network service in the guestos.
5. Unable to fetch the IP and waits indefinitely.

Note: Not tested on other guestos whether the same problem exists or not.

[lokesh]

VBox.log

[lokesh]

Forgot to mention the workaround

Workaround: Don't restart the guestos, instead:-

1. SHUTDOWN the guestos.
2. Close the VirtualBox application.
3. connect the USB2Ethernet adapter.
4. Restart the VirtualBox application.
5. Perform a fresh boot.

[Valery Ushakov]

Does it help if you switch network adapter attachment of the running VM to "Not attached" and then back to bridged?

[lokesh]

Nope. didn't help, a fresh restart (of VirtualBox application) is required.

[wiglet]

I believe I have a experienced this bug using a slightly different setup. You might find the logs attached to following post useful.

​https://forums.virtualbox.org/viewtopic.php?f=6&t=76183&sid=9ea59c3245cf457058fcaa90ad554b9d