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Oracle Virtualbox 4.3.22 network activated and deactivated every a few minutes problem.

When I upgrade the Oracle Virtualbox to 4.3.22, I got "connection 'Wired connection 1' activated" and  "connection 'Wired connection 1' deactivated" in my guest OS, Kubuntu 14.04. In syslog, the following messages are repeated. This happens every a few minutes.

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Feb 19 00:47:55 hitoshi-kubuntu-14 NetworkManager[683]: (eth0): IP6 addrconf timed out or failed.
Feb 19 00:47:55 hitoshi-kubuntu-14 NetworkManager[683]: Activation (eth0) Stage 4 of 5 (IPv6 Configure Timeout) scheduled...
Feb 19 00:47:55 hitoshi-kubuntu-14 NetworkManager[683]: Activation (eth0) Stage 4 of 5 (IPv6 Configure Timeout) started...

Feb 19 00:47:55 hitoshi-kubuntu-14 NetworkManager[683]: Activation (eth0) Stage 4 of 5 (IPv6 Configure Timeout) complete.
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Activate and deactivate network frequently
Host OS: Windows 7
Guest OS: Kubuntu 14.04
Oracle Virtualbox 4.3.22r98236
Also I found the same problem with CentOS: https://www.centos.org/forums/viewtopic.php?f=50&t=51112

 But, this doesn't happen Oracle Virtualbox 4.3.20r96997. So I reverted to 4.3.20r96997.
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Comments

freebore said…
Same problem here since updating to VBox 4.3.22. Windows 7 Host and Kubuntu 14.04.2 LTS have all updates and I reinstalled the latest Guest Additions. Next I am going to try to load the apt package version of Guest Additions.
February 19, 2015 at 8:36 PM
freebore said…
Backdated to 4.3.20 and the problem went away. Similar issues reported on the virtualbox forums, on many different client O/S, so I'm confident this is a VBox issue, not a Kubuntu issue. https://forums.virtualbox.org/viewtopic.php?f=1&t=66067
February 20, 2015 at 4:20 PM
Jarek Kątnik said…
Hi!

I had the same problem. After upgrading VBox to 4.3.30 it is gone :)
October 19, 2015 at 10:57 PM
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