SXT LTE KIT drop connect every 2 seconds

RouterOS Wireless Networking
1

Hello everyone. I recently purchased an SXT LTE KIT device. Everything is connected, but every few seconds there is a connection break. I need your help.
Currently installed: MikroTik RouterOS 6.47.10
RouterBoard 6.47.10

/interface lte firmware-upgrade lte1
installed: MikroTik_CP_2.160.000_v018
latest: MikroTik_CP_2.160.000_v018
Снимок.JPG

2

Have you tried to update MikroTik RouterOS 6.47.10 firmware to the latest version ?
Is it not that the newest version is 6.48.3 ?