I have the same problem - flashplugin-installer not been installed because wget fails downloading the plugin from archive.canonical.com.
I fixed it by specifying an http_proxy in /etc/wgetrc.
The line bellow also has worked for me: sudo http_proxy=http://myproxy.somewhere.com:8080/ apt-get install --reinstall flashplugin-installer
I have the same problem - flashplugin- installer not been installed because wget fails downloading the plugin from archive. canonical. com.
I fixed it by specifying an http_proxy in /etc/wgetrc.
The line bellow also has worked for me: myproxy. somewhere. com:8080/ apt-get install --reinstall flashplugin- installer
sudo http_proxy=http://