Yeah yeah, wrong order of words: Kad stays connected *until* amuled crashes

Anyway, my first point is: It is my observation that Kad disconnects when there is no download activity for a few hours. I don't know if anybody can confirm this since I figure that most people are constantly downloading.
And the second point is that it is impossible to reconnect using the "connect kad" command in amulecmd or on the GUI. Perhaps you can look into this, if there is some time.