WE826-T2 and MC7354, No Internet

Sierra Wireless AirPrime Modem Card Topics
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terryjett
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WE826-T2 and MC7354, No Internet

Post by terryjett » Mon Oct 28, 2019 3:30 pm

Just setup new WE826 and MC7354. The MC7354 was used and pulled from working router few months back.

Have ran through the troubleshooting and all seems good. SIM is reading and certain pigtails are connected firmly / correctly. AT&t SIM is good, just pulled it out of working 781S hotspot before this setup. Modem is connecting too.

Here is little debugging info:

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OK
AT!PCTEMP?
Temp state: Normal
Temperature: 28 degC
OK
  
Mon Oct 28 14:06:12 2019 : /dev/ttyUSB2 AT+CPMS="SM"
+CPMS: 1,30,1,30,1,30
OK
  
Mon Oct 28 14:06:21 2019 : /dev/ttyUSB2 AT+CSQ;+CESQ
+CSQ: 21,99
+CESQ: 99,99,255,255,18,39
OK
AT*CNTI=0
*CNTI: 0,LTE
OK
AT!SELRAT?
!SELRAT: 07, GSM, UMTS, LTE
OK
AT+ECIO?
Only valid in WCDMA mode
OK
AT+RSCP?
Only valid in WCDMA mode
OK
AT!UMTSCHAN?
!UMTSCHAN: NOT IMPLEMENTED
OK
AT!GSTATUS?
!GSTATUS: 
Current Time:  211		Temperature: 28
Bootup Time:   0		Mode:        ONLINE         
System mode:   LTE        	PS state:    Attached     
LTE band:      B4     		LTE bw:      10 MHz  
LTE Rx chan:   2000		LTE Tx chan: 20000
EMM state:     Registered     	Normal Service 
RRC state:     RRC Idle       
IMS reg state: No Srv  		
RSSI (dBm):    -72		Tx Power:    0
RSRP (dBm):    -100		TAC:         6A2C (27180)
RSRQ (dB):     -11		Cell ID:     07FC9617 (133994007)
SINR (dB):     18.0
OK
AT!PCTEMP?
Temp state: Normal
Temperature: 28 degC
OK
Pretty comfortable installing / setting up but have never had to troubleshoot these sierra wireless cards so little green on the subject:)

Network status (AT&T) seems ok:

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Signal Information
Network :
LTE
 
CSQ :
22
 
Signal Strength :
70%
 
RSSI :
-70 dBm
 
ECIO :
-
 
RSCP :
-100 (RSRP) dBm
 
Connection Monitoring Status :
Disabled
 

Cell Information
MCC MNC :
310 410
 
RNC/eNB ID :
7FC96 (523414)
 
LAC/TAC :
6A2C (27180)
 
Cell ID :
17 (23)
 
LTE Band :
B4 (Bandwidth 10 MHz)
 
Channel :
2000
 
Maximum Qos :
Any tips that may get me on the right track appreciated.

I did see this tread viewtopic.php?f=21&t=34 but do not yet have my USB to PCI yet. Figured must be another issue because the MC7354 was working on AT&T few months ago.

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terryjett
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Re: WE826-T2 and MC7354, No Internet

Post by terryjett » Mon Oct 28, 2019 5:15 pm

Forgot to mention that I flashed the new WE826 with openwrt-we826-GO2019-10-20-upgrade.bin so not running stock.

Also using SIM from a 781S hotspot and it had been connecting to bands 2 and 4 without any issues (using at&t prepaid ipad plan).

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JimHelms
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Re: WE826-T2 and MC7354, No Internet

Post by JimHelms » Mon Oct 28, 2019 8:25 pm

What carrier firmware is on the MC7354?

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terryjett
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Re: WE826-T2 and MC7354, No Internet

Post by terryjett » Mon Oct 28, 2019 8:38 pm

JimHelms wrote:
Mon Oct 28, 2019 8:25 pm
What carrier firmware is on the MC7354?
When I enter:

Code: Select all

at!entercnd="A710"
at!gobiimpref?
Shows provisioned for AT&T.

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at!gobiimpref?
!GOBIIMPREF: 
 preferred fw version:   05.05.58.00
 preferred carrier name: ATT
 preferred config name:  ATT_005.026_000
 current fw version:     05.05.58.00
 current carrier name:   ATT
 current config name:    ATT_005.026_000
Pulled the MC7354 from working router few months back.

Wondering if I should replace the AT&T firmware with the generic firmware? Really like to see this setup working.

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Re: WE826-T2 and MC7354, No Internet

Post by JimHelms » Tue Oct 29, 2019 8:02 am

If it were me, I would first reset the MC7354 modem to OEM. This is wipe out any configuration that may be the culprit.

With that said, do so at your own risk. If the modem was originally in a Verizon device, it may resort back to Verizon firmware and will again need to be flashed with AT&T firmware.

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at!entercnd="A710";!RMARESET=OEM
After the reset is complete, you may have to reboot the modem. Some of the MC7354 auto reboots after the OEM is performed.

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at!reset

After the OEM is completed, you need to do a hard reboot of the router (power off/power on).

When all is rebooted and the modem is again available, remove all the APN's from all profile slots on the modem:

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at!entercnd="A710"
at+cgdcont=1;+cgdcont=2;+cgdcont=3;+cgdcont=4
Next, and assuming you still have AT&T firmware, hard program the APN as well as make sure it is entered in GoldenOrb's MODEM PROFILE.

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at+cgdcont=1,"ipv4v6","broadband"
If you still have issues connecting, and you have a Mini PCI-E to USB adapter, flash the modem with the latest AT&T firmware. I generally flash the modem twice with a firmware.

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terryjett
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Re: WE826-T2 and MC7354, No Internet

Post by terryjett » Tue Oct 29, 2019 8:55 am

Thanks for reply Jim.

I did as you suggested and still no internet. Looking at the debug and other info seems I should. Only thing seems strange is transmit power in debug:

Code: Select all

Mon Oct 28 16:01:30 2019 : /dev/ttyUSB2 AT+CPMS="SM"
+CPMS: 1,30,1,30,1,30
OK
  
Mon Oct 28 16:01:37 2019 : /dev/ttyUSB2 AT+CSQ;+CESQ
+CSQ: 16,99
+CESQ: 99,99,255,255,15,29
OK
AT*CNTI=0
*CNTI: 0,LTE
OK
AT!SELRAT?
!SELRAT: 07, GSM, UMTS, LTE
OK
AT+ECIO?
Only valid in WCDMA mode
OK
AT+RSCP?
Only valid in WCDMA mode
OK
AT!UMTSCHAN?
!UMTSCHAN: NOT IMPLEMENTED
OK
AT!GSTATUS?
!GSTATUS: 
Current Time:  1322		Temperature: 30
Bootup Time:   0		Mode:        ONLINE         
System mode:   LTE        	PS state:    Attached     
LTE band:      B2     		LTE bw:      15 MHz  
LTE Rx chan:   1025		LTE Tx chan: 19025
EMM state:     Registered     	Normal Service 
RRC state:     RRC Idle       
IMS reg state: No Srv  		
RSSI (dBm):    -82		Tx Power:    0
RSRP (dBm):    -111		TAC:         6A2C (27180)
RSRQ (dB):     -12		Cell ID:     07F52C09 (133508105)
SINR (dB):      3.2
OK
AT!PCTEMP?
Temp state: Normal
Temperature: 29 degC
OK
Also do not understand why the date/time is off. Synced to browser during setup?

Received SMS stating device active:

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DATA-ACTIVATION?success=yes;intl=no;plan=time;unit=KB;allowed=9999757606912;end=10:26:2019:00:07:10;MSISDN=+1903XXXXXXX
Looks registered:

Code: Select all

AT+CEREG?
+CEREG: 0,1

OK
Network status looks ok (signal little low since using the we826 antennas):

Code: Select all

Signal Information
Network :LTE
 
CSQ :16
 
Signal Strength :51%
 
RSSI :-73 dBm
 
ECIO :-
 
RSCP :-111 (RSRP) dBm
 
Connection Monitoring Status :Disabled
 

Cell Information
MCC MNC :310 410
 
RNC/eNB ID :7F52C (521516)
 
LAC/TAC :6A2C (27180)
 
Cell ID :09 (9)
 
LTE Band :B2 (Bandwidth 15 MHz)
 
Channel :1025
 
Maximum Qos :-
Looks like the latest AT&T firmware already installed:

Code: Select all

at!gobiimpref?
!GOBIIMPREF: 
 preferred fw version:   05.05.58.00
 preferred carrier name: ATT
 preferred config name:  ATT_005.026_000
 current fw version:     05.05.58.00
 current carrier name:   ATT
 current config name:    ATT_005.026_000

OK
Beat me. Can remove the SIM from we826, install in the netgear 781S and instantly connects to band 2 (sometimes band 4) with pretty good speeds of 17-20 down and about same up.

Hoping to start replacing netgear 7XX in field with we826 but right now the test is disappointing:(

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JimHelms
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Re: WE826-T2 and MC7354, No Internet

Post by JimHelms » Tue Oct 29, 2019 9:00 am

Run the command:

Code: Select all

AT!GSTATUS?

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Re: WE826-T2 and MC7354, No Internet

Post by JimHelms » Tue Oct 29, 2019 9:03 am

It is also possible that the AT&T SIM Card is using an IPV4 APN as opposed to an IPV4V6 APN.

See THIS tutorial.

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terryjett
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Location: West Tawakoni

Re: WE826-T2 and MC7354, No Internet

Post by terryjett » Tue Oct 29, 2019 9:11 am

JimHelms wrote:
Tue Oct 29, 2019 9:00 am
Run the command:

Code: Select all

AT!GSTATUS?

Code: Select all

AT!GSTATUS?
!GSTATUS: 
Current Time:  2522		Temperature: 31
Bootup Time:   0		Mode:        ONLINE         
System mode:   LTE        	PS state:    Attached     
LTE band:      B2     		LTE bw:      15 MHz  
LTE Rx chan:   1025		LTE Tx chan: 19025
EMM state:     Registered     	Normal Service 
RRC state:     RRC Idle       
IMS reg state: No Srv  		

RSSI (dBm):    -75		Tx Power:    0
RSRP (dBm):    -111		TAC:         6A2C (27180)
RSRQ (dB):     -16		Cell ID:     07F52C09 (133508105)
SINR (dB):      9.8


OK
IP4... Could that be it? Should there be any IP's shown here?
2019-10-28_155703.png
Will take a look at the IP4 tutorial you suggested.

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JimHelms
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Re: WE826-T2 and MC7354, No Internet

Post by JimHelms » Tue Oct 29, 2019 9:16 am

Your signals are not real good, but they should hold a connection.

You are registered with the network but in idle mode.

I would try changing the APN to an IPV4 per the tutorial and see what happens.

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