Firmware upgrade?

I use my WD for mostly slingbox access. I was thrilled with the performance…until the last firmware upgrade.

I now lose connectivity every 10 minutes or so(It used to stay connected all day). How can i fix? Can i go back a level in firmware? Produict is essentially useless as is.

http://wdc.custhelp.com/app/answers/detail/a_id/5860/