Can't update sigms key

SigmaKey v.2.29.01 build 02
Detected GsmServer S-Card products:
S-Card: 749364116 Sigma dongle, v 2.28
S-Card: 749364116 Sigma dongle, v 2.28
cannot connect to the server,
check internet connection or try later
Wrong or incomplete server reply received
S-Card: 749364116 Sigma dongle, v 2.28
cannot connect to the server,
check internet connection or try later
Wrong or incomplete server reply received

no firewall, no antivirus