Hello,
I'm having the same problem with my Bitdefender Antivirus Plus 2012, with every automatic update attempt failing because of this '-1011' error.
After reading the previous posts, with all the different answers given, it's not clear what I should do to solve this.
I'm using a SDL internet connection, but never encountered update problems with my Bitdefender 2010 and 2011 antivirus versions.
Any help?