rdnssd hangs up when using a kickstart file

When using a kickstart file to install Ubuntu 12.04 LTS, the installer seems to be hanged up and I have to open a console (with alt+F2), and kill a process called rdnssd. This is the line I get when I use ps:

9041 root 2484 S rdnssd -f -u root -r /tmp/rdnssd_resolv

Of course, the PID changes, but once this process is killed (using kill 9041 as root) the installer goes on properly, and systems get installed using the specified kickstart without ant problem.

There is no relevant information in the syslog about it but I can send it if neccesary

To use the kickstart file I use the following line from the installer's command line:

install http:://private-http-server/ks.cfg

Could you please review and try to fix it?

Thanks!