Comment 18 for bug 856810

I have the same problem and tried both this:

"I noticed the bug #847782 and removed the "auto eth0" entry from my /etc/network/interfaces."

and this:

"In my case, this behavior went away as soon as I tried the fix in comment #9 for bug #811441. For me, this was just a symptom that the system could not communicate with dbus."

but my problem is not fixed.
I have now used a workaround: I edited /etc/init/failsafe.conf and changed the sleep numbers.