I don't have any MS virtual adapters showing to turn off.
I have disabled the firewall.
I have not had any update problems with any other programs on this Toshiba laptop.
Adobe Reader Help/Update works fine.
It is just Elements 11 that won't check for updates.
You may need to uninstall and reinstall PSE 11, then reapply the updates.
Make sure you don't have any disk cleanup utilities that might be running during and after the install that may be altering any of the files installed or installation paths.
Give this a try and let me know how it goes,