not connect to server!

Unlock4samsung Monday, July 16, 2018

SigmaKey v.2.28.04
******* Sigma dongle 2.28, Initializing...OK
Pack 1: Activated
Pack 2: Activated
Pack 3: Activated
--------- 2018-07-17 09:36:05 ---------
SigmaKey 2.28.04 HiSi: Repair IMEI
Connecting....
Android Adapter PCUI (COM156), Provider: HUAWEI Technologies CO.,LTD, Driver ver.: 1.0.26.0, Date: 5/18/2016, USB\Vid_12D1&Subclass_13&Prot_22
Firmware: System 5.1.0.98(06UM), Date: Wed Jan 31 03:09:36 CST 2018, Provider: hw/meafnaf
Boot Version: Chipset-dallas 5.1.0.1(0L3U)_BOOT, FastBoot Version: Chipset-dallas 5.1.0.1(0L3U)_FASTBOOT
Recovery Version: (unknow), System Version: System 5.1.0.98(06UM)
Removing firmware protection...Unable to connect to the server. Please check your network.
Removing firmware protection...^ Android Composite ADB Interface
Cancelled
!
i test vpn connection also but same