加入CDFS和UDFS，光驱能正常运作了。但网络依然不能用，设备管理器提示ethernet controller没有驱动，打开工作组时提示"workgroup is not accessible. you might not have permission to use this network resource. contact the administrator of this server to find out if you have access permission.
the list of servers for this workgroup is not currently available."
