I have been fighting this problem all week and need some ideas. We have a few servers that started rebooting unexpectedly 3 days ago. I found that if all the windows updates were installed the rebooting would stop. The problem though is that now I have a lot of traffic flooding my network. The excess traffic is coming out on port 139 and 445 the SMB port. I do not know why it is doing it or how to stop it. I would turn it off but I have some files that are shared on it. Does anybody have any ideas on what I can try? Also, if you need any more information please ask.