What does the app "Eduroam fixer" do?
Judging by the reviews on various sites, this app is unlikely to solve your need to reboot after the connection gets screwed up; users report the same thing occurring with the app.

This thread is particularly relevant.  It seems that "Eduroam Fixer" is just a configurator.  In particular it allows you connect to Eduroam by changing config files for you; this is useful on some ROMs which (for whatever reason) don't allow you to properly set the certificate through the interface.  I'm not 100% clear on the details, but the people in that thread consider it a security risk.