Dropping LTE RBSXTR&R11e-LTE6

Ive got a MikroTik RBSXTR&R11e-LTE6 I’ve used a lot of these but this one is causing issues.

It has a uk EE wim installed, apart from APN and DHCP POOL its config is default. It worked fine for a number of days now keeps dropping the LTE connection, this happens after a few hours of working. I can get it online again by rebooting.

I attached some log images.

Any ideas?

Thanks all
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Signal strength? ROS version? Upgraded LTE firmware?

Regards.

Sorry, not on site have got the lamds to send the following images.
quickset.JPG
Signal 1.JPG
signal 2.JPG