I noticed that, when I unplugged my laptop, or closed/opened the lid, my wireless connection dropped, every time.
I tracked it down to
pm-powersave, and made it stop, see below.
This could also cause repeated requests for network passwords.
I've found that
I found this by doing an
Thank you for posting this! I went through mountains to find out why my wireless card is not working properly until I found this post. It worked for me too !