2015-02-19

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.