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 ?

Have you set the correct APN settings of your provider ?

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