GL-X3000 SIM card switch needs a reboot to properly work

Hi Max3:

‘Two days ago I rebooted the modem at 3:00am. After 24 hours (when my IP was supposed to change) I had another disconnection for 1 hour’
—> During an hour of disconnection:If conditions permit,please help check some information:

1>
gl_modem -B 0001:01:00.0 AT AT+CGPADDR
gl_modem -B 0001:01:00.0 AT ‘AT+QENG=“servingcell”’

2>
ifconfig
ubus call network.interface.modem_0001 status
ubus call network.interface.modem_0001_4 status
ip addr show
ps -w