It seems that this issue is still around. I have a trouble ticket in and will wait to see what happens. This all started for me when I installed my new SSD drive today. I installed Windows, updated and installed drivers. Then I installed BF3 on it. I tried to join a server and started getting disconnected with the error above. I disabled all non-microsoft services and it still doesn't work.I don't even have an Anti-Virus loaded yet... I updated punkbuster and even reinstalled it.