BC660 - AT+COPS=0, unable to find network

Hi,
I’m having a problem with automatic operator selection via AT+COPS=0. After 10 minutes the modem couldn’t find a NBIOT network. I didn’t have this problem with the older BC66NB modem - it usually takes about 1 minute to find a network.

This is AT sequence:

AT
OK
AT+CFUN=0
OK

+CPIN: NOT READY
AT+CGMR
Revision: BC660KGLAAR01A05

OK
AT+CPSMS=1,,,"01000011","00000000"
OK
AT+CEDRXS=0,5
OK
AT+QICFG="dataformat",1,1
OK
AT+QCFG="slplocktimes",1
OK
AT+QCFG="wakeupRXD",0
OK
AT+CFUN=1
OK

+CPIN: READY
AT
OK
AT
OK
AT
OK
AT
OK
AT+QBAND=2,8,20
OK
AT+QCCID
+QCCID: 89882280666067897797

OK
AT+QCGDEFCONT="IP"
OK
AT+COPS=0
OK
AT+CSQ
+CSQ: 99,99

OK

Please execute the following AT command

AT+CFUN=0
AT+QCSEARFCN
AT+QBAND=2,8,20
AT+QRST=1
AT+CSCON=1
AT+QCGDEFCONT=“IPV4V6”
AT+QENG=0 //Please query multiple times
AT+CEREG?