Like many other natty users on a university/academic network, I'm experiencing annoying frequent disconnects/hangs/delays.

See, for instance here.

I would like to learn how to add fast_reauth=0 to the wpa_supplicant.conf file.

This file, it seems, does not exit by default, and needs to be manually created first: README

You will need to make a configuration file, e.g. /etc/wpa_supplicant.conf, with network configuration for the networks you are going to use.

Further, I installed wpa_gui which probably needs to be launched with parameters, else it's pretty blank...

What I'm hoping for is this:

That creating a wpa_supplicant.conf file with fast_reauth=0 in it, saving it to the relevant path, will work and make my uni wireless (more or even completely) stable.

I read mixed reviews about wicd (as an alternative to the network manager).

Also note that on my basic wlan at home (with bog-standard wpa encryption) the connection is stable.

Thanks!