EXPRESSWAY-E AND EXPRESSWAY-C 中间的防火墙是否要放行端口吗？端口是多少呀？

In the ccm4.1，win2000 system "Computer Management--system tools--event viewer--application "Every minute error from! Are all "device unregistered"，And the phone automatically restart。Trouble you help me find the problem there? Thank you!!!!---Event T...