We’ve had a device operate for the last few months down in the US utilising either the 7611 or 7610 depending what we could get supply wise with relatively little issue.
Then in the last week or so, the majority have been shutting down mid calls or stopping being able to register to network.
Has anybody experienced this before with AT&T and the WP’s?
Hi aatw76,
First of all, could you please double-check if your sim still worked during that time? You can check your SIM with your cellphone.
Thanks,
Hi jerdung
The customer has checked the SIM before using in device, I will need to follow up with them if they checked afterwards specifically. The problem appears to be the device/modem but I’m scratching my head as to how. In the past AT&T has been a great network to operate with, everything worked all the time. Not like the nightmare that is Verizon certification.
Simon
Im the engineer working on the issue noted by @aatw76 for WP7610/WP7611. What it looks like is our setup has only ever worked with 3G and when ATT shut down 3G our devices stopped working. Im in canada and I can register and make voice calls If KSRAT = 0 (All RATs, automatic). If I try to make it KSRAT = 5 (LTE only) it will no longer register and make calls.
/*********************************************************
KSRAT = 0 case:
/*********************************************************
AT+KSRAT?
+KSRAT: 0
OK
AT+cops?
+cops: 0,0,“ROGERS”,7
OK
AT+CGDCONT?
+CGDCONT: 1,“IP”,“ltemobile.apn”,“0.0.0.0”,0,0,0,0
+CGDCONT: 2,“IPV4V6”,“ims”,“0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0”,0,0,0,0
+CGDCONT: 3,“IPV4V6”,“sos”,“0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0”,0,0,0,1
OK
AT!GSTATUS?
!GSTATUS:
Current Time: 2275 Temperature: 29
Modem Mitigate Level: 0 ModemProc Mitigate Level: 0
Reset Counter: 1 Mode: ONLINE
System mode: LTE PS state: Attached
IMS reg state: NOT REGISTERED IMS mode: Normal
IMS Srv State: NO SMS,NO VoIP
LTE band: B2 LTE bw: 15 MHz
LTE Rx chan: 1075 LTE Tx chan: 23060
LTE CA state: INACTIVE
EMM state: Registered Normal Service
RRC state: RRC Idle
PCC RxM RSSI: -72 RSRP (dBm): -98
PCC RxD RSSI: -95 RSRP (dBm): -139
Tx Power: – TAC: 5A05 (23045)
RSRQ (dB): -7 Cell ID: 010B6117 (17522967)
SINR (dB): 17.0
OK
ATD+1##########;
OK
+CREG: 1,“CF35”,“1228D5”,2
CONNECT
NO CARRIER
+CREG: 1,“FFFE”,“10B6179”,7
+CREG: 1,“FFFE”,“10B6117”,7
/*********************************************************
Case: KSRAT = 5
/*********************************************************
AT+KSRAT?
+KSRAT: 5
OK
AT+cops?
+cops: 0,0,“ROGERS”,7
OK
AT+CGDCONT?
+CGDCONT: 1,“IP”,“ltemobile.apn”,“0.0.0.0”,0,0,0,0
+CGDCONT: 2,“IPV4V6”,“ims”,“0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0”,0,0,0,0
+CGDCONT: 3,“IPV4V6”,“sos”,“0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0”,0,0,0,1
OK
!GSTATUS?
!GSTATUS:
Current Time: 1882 Temperature: 28
Modem Mitigate Level: 0 ModemProc Mitigate Level: 0
Reset Counter: 1 Mode: ONLINE
System mode: LTE PS state: Attached
IMS reg state: NOT REGISTERED IMS mode: Normal
IMS Srv State: NO SMS,NO VoIP
LTE band: B2 LTE bw: 15 MHz
LTE Rx chan: 1075 LTE Tx chan: 19075
LTE CA state: INACTIVE
EMM state: Registered Normal Service
RRC state: RRC Idle
PCC RxM RSSI: -75 RSRP (dBm): -101
PCC RxD RSSI: -95 RSRP (dBm): -136
Tx Power: – TAC: 5A05 (23045)
RSRQ (dB): -7 Cell ID: 010B6117 (17522967)
SINR (dB): 14.8
OK
ATD+1##########;
ERROR