Often, when my laptop goes to suspension and then awakenes, it does not find the wifi network I am usually connected to (eduroam). When I open the network menu, I see "V" both near "Enable networking" and near "Enable wifi", and I also see one wifi network that I cannot connect to since it is locked, but I do not see eduroam. I can fix this by restarting the network manager, like this:
sudo service network-manager restart
But, it is annoying to do this each time after awakening. How can I prevent Ubuntu from forgetting my wifi network?