RBLHGR&R11e-LTE6 drops lte connection every 10-30 minutes

Hello i have RBLHGR&R11e-LTE6, with latest stable firmware.
Lte connection is dropping every 10-30 minutes,
log is

No clue whats going on. Can somebody help me with this issue.

When you do register, what are the values of RSRP, RSRQ and SINR ?

The connection looks very good…
So there must be another reason…

On the general tab of the LTE, select only LTE in Network Mode and see how it goes …

Have you set the correct APN settings of your provider ?

In case the APN settings were wrong he would probably not register at all …