if you got 终端设备连接失败terminal device conncetion fail,no need to bring the IP TV box into office, do following steps:
1. go 设置setting -> 其他设置other setting-> 更多设置 more setting-> 以太网 Ethernet -> change 关闭 off to 打开on ,
(please note that only status is off has connection fail issue, if status is on, no problem)
2.go MKTV try again. it should be working.