BC26 offline after receive data from server & If send data more then one time per 25 seconds that returns error,send failed

IoT Modules LPWA Module
1

BC26 offline after receive data from server & If send data more then one time per 25 seconds that returns error,send failed.
I determined the problems occured about DRX or eDRX settings
BC26 send data error when DRX request check time > 20s
If send ‘\n’ before content,first send returns error,another returns send ok.
Everyone help me.

2

Hi E_engineer
Please provide your AT process, open the time stamp.