I had no trouble connecting to my wireless network for Netflix or Pandora. It was on the slow side so the quality was only fair. Then I started getting a hard error. I changed to a wired network but that did not help. A call to Netflix got me to reboot the BD P3600 which fixed the problem, temporarily. From then on, I had to reboot before every session or after the 3600 went to sleep on a long pause.
Samsung Customer Service was a disgrace. hey had me try 4 or 5 stupid things and then wanted me to send the unit in for repair.
I refused unless they would send me a loaner. They did know about the problem.
Then in desperation I reviewed the Setup and set the "NTP Server" option to ON. That might have done the trick as the problem has not reoccurred in four or five tries. I don't even know what the NTP Sever does. If this doesn't work, a firmware fix will be required but Samsung should be embarrassed. What lousy customer service.