Hi @bochorishvili ,
- Which FW are you using? Please upgrade the device to latest if it is not. The FW is published in Sierra source:
https://source.sierrawireless.com/resources/airlink/software_downloads/ls300-firmware/ls300-firmware-list/#sthash.qWailzAt.reohdjNV.dpbs - Please try the procedure to access ACE Manager following the below topic and share your result.
GX-450 acemanager problems - #2 by Vianney
Thanks