Have the same problem with WiFi.I don't think it's knetworkmanager or networ-kmanager. I install previous version but it's the same.
Works on Sid also (second laptop)! Last 14 days I was think that is problem with Broadcom. -- Bye, Goran Dobosevic Hrvatski: www.dobosevic.com English: www.dobosevic.com/en/ Registered Linux User #503414