Unable to connect to the server ?? Help

Hi

I have this problem
Can help me please ?

——— 2016-07-27 20:05:06 ———
SigmaKey 2.18.00 Qcom: Repair IMEI
DBAdapter Reserved Interface (COM171), Provider: Huawei Incorporated, Driver ver.: 2.0.6.714, Date: 07/04/2015, USB\Vid_12d1&Pid_1035&Rev_????&MI_04
Removing firmware protection……………………………Unable to connect to the server. Please check your network.

My Network its ok