# Trouble Connecting to network
**URL:** https://mangoh.discourse.group/t/trouble-connecting-to-network/1535
**Category:** mangOH Red
**Created:** [June 11, 2018, 9:30pm UTC](https://mangoh.discourse.group/t/trouble-connecting-to-network/1535 "2018-06-11T21:30:52Z")
**Posts on this page:** 20
**Page:** 1
### Author:  [@jlgonzalez](https://mangoh.discourse.group/u/jlgonzalez)
#### Post date: [June 11, 2018, 9:30pm UTC](https://mangoh.discourse.group/t/trouble-connecting-to-network/1535/1 "2018-06-11T21:30:52Z")
Hello, I am using a mangOH Red with a WP7702. I have registered my Sierra Wireless SIM card using AirVantage and have reached the step where I am trying to connect to a mobile network.
I will get this response to cm radio initially;
root@swi-mdm9x28:~# cm radio
Power: ON
Current Network Operato
Current RAT: Not available
Status: Not registered but currently searching for a new operator (LE\_MRC\_REG\_SEARCHING)
Signal: No signal strength (0)
PS: Packet Switched Not registered (LE\_MRC\_REG\_NONE)
But then get this response eventually;
root@swi-mdm9x28:~# cm radio
Power: ON
Current Network Operato
Current RAT: Not available
Status: Not registered and not currently searching for new operator (LE\_MRC\_REG\_NONE)
Signal: No signal strength (0)
PS: Packet Switched Not registered (LE\_MRC\_REG\_NONE)
Am I missing a step?
---
### Author:  [@asyal](https://mangoh.discourse.group/u/asyal)
#### Post date: [June 11, 2018, 9:55pm UTC](https://mangoh.discourse.group/t/trouble-connecting-to-network/1535/2 "2018-06-11T21:55:26Z")
Hi,
The reason is that as of today, SIMs provided with mangOH Red for LTE-m1 are for developer mode only.
For WP7702 modules when used with Sierra SIM provided with mangOH Red , note the following:
1. NB-IOT doesnt work.
2. LTE-m1 is mostly working: send AT command: at!selciot=2
3. 2G always work. send AT command: at!selciot=6
regards,
Ashish
---
### Author:  [@jlgonzalez](https://mangoh.discourse.group/u/jlgonzalez)
#### Post date: [June 11, 2018, 10:10pm UTC](https://mangoh.discourse.group/t/trouble-connecting-to-network/1535/3 "2018-06-11T22:10:12Z")
Thanks for the info. What are the current limitations in LTE-m1 mode? When is NB-IOT going to be ready?
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### Author:  [@asyal](https://mangoh.discourse.group/u/asyal)
#### Post date: [June 11, 2018, 10:12pm UTC](https://mangoh.discourse.group/t/trouble-connecting-to-network/1535/4 "2018-06-11T22:12:48Z")
For NB-IOT, the Sierra SIM provided with mangOH Red is not ready today. LTE-m1 should be working but we are currently doing all the tests.
---
### Author:  [@jlgonzalez](https://mangoh.discourse.group/u/jlgonzalez)
#### Post date: [June 11, 2018, 10:14pm UTC](https://mangoh.discourse.group/t/trouble-connecting-to-network/1535/5 "2018-06-11T22:14:38Z")
Progress…
I issued the at!selciot=2 command and reissued cm radio on, now I get this…
root@swi-mdm9x28:~# cm radio
Power: ON
Current Network Operato
Current RAT: Not available
Status: Registration was denied, usually because of invalid access credentials (LE\_MRC\_REG\_DENIED)
Signal: No signal strength (0)
PS: Packet Switched Not registered (LE\_MRC\_REG\_NONE)
---
### Author:  [@asyal](https://mangoh.discourse.group/u/asyal)
#### Post date: [June 11, 2018, 10:17pm UTC](https://mangoh.discourse.group/t/trouble-connecting-to-network/1535/6 "2018-06-11T22:17:53Z")
> [@jlgonzalez](#):
>
> E\_MRC\_REG\_NONE)
did you activate your SIM on AV?
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### Author:  [@jlgonzalez](https://mangoh.discourse.group/u/jlgonzalez)
#### Post date: [June 11, 2018, 10:18pm UTC](https://mangoh.discourse.group/t/trouble-connecting-to-network/1535/7 "2018-06-11T22:18:56Z")
Yes
UID
05e57133fb21481995529b091f2fadde
IMEI
352653090111964
Serial Number
VU810385260910
---
### Author:  [@asyal](https://mangoh.discourse.group/u/asyal)
#### Post date: [June 11, 2018, 10:19pm UTC](https://mangoh.discourse.group/t/trouble-connecting-to-network/1535/8 "2018-06-11T22:19:35Z")
can you try the 2G network first and see whether that works? Then we try the LTE-m1.
Also, remember it takes 0-30 minutes for first time SIM activation from AV
---
### Author:  [@jlgonzalez](https://mangoh.discourse.group/u/jlgonzalez)
#### Post date: [June 12, 2018, 1:39pm UTC](https://mangoh.discourse.group/t/trouble-connecting-to-network/1535/9 "2018-06-12T13:39:53Z")
I tried again this morning. With 2G setting it never works, so I reverted to the LTE-M1 setting. I received the following once again;
root@swi-mdm9x28:~# cm radio
Power: ON
Current Network Operato 310 260
Current RAT: GSM network (LE\_MRC\_RAT\_GSM)
Status: Registration was denied, usually because of invalid access credentials (LE\_MRC\_REG\_DENIED)
Signal: Weak signal strength (2)
PS: Packet Switched Not registered (LE\_MRC\_REG\_NONE)
root@swi-mdm9x28:~# cm radio
Power: ON
Current Network Operato
Current RAT: Not available
Status: Registration was denied, usually because of invalid access credentials (LE\_MRC\_REG\_DENIED)
Signal: No signal strength (0)
PS: Packet Switched Not registered (LE\_MRC\_REG\_NONE)
Can you take a look and see if I registered on AV correctly?
---
### Author:  [@asyal](https://mangoh.discourse.group/u/asyal)
#### Post date: [June 12, 2018, 3:28pm UTC](https://mangoh.discourse.group/t/trouble-connecting-to-network/1535/10 "2018-06-12T15:28:01Z")
can you provide the output for the following :
cm sim info
cm info
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### Author:  [@jlgonzalez](https://mangoh.discourse.group/u/jlgonzalez)
#### Post date: [June 12, 2018, 3:46pm UTC](https://mangoh.discourse.group/t/trouble-connecting-to-network/1535/11 "2018-06-12T15:46:45Z")
root@swi-mdm9x28:~# cm sim info
Type: EXTERNAL\_SLOT\_1
ICCID:
Home Network Operator:
EID:
IMSI:
Phone Number:
root@swi-mdm9x28:~# cm info
Device: WP7702
IMEI: 352653090111964
IMEISV: 2
FSN: VU810385260910
Firmware Version: SWI9X06Y\_02.14.04.00 a03347 jenkins 2018/[170.461357] i2c-msm-v2 78b8000.i2c: NACK: slave not responding, ensure its powered: msgs(n:1 cur:0 tx) bc(rx:0 tx:2) mode:FIFO slv\_addr:0x3a MSTR\_STS:0x0c1300c8 OPER:0x00000090
02/19 06:13:56
Bootloader Version: SWI9X06Y\_02.14.04.00 a03347 jenkins 2018/02/19 06:13:56
MCU Version: 002.007
PRI Part Number (PN): 9907365
PRI Revision: 001.004
Carrier PRI Name: GENERIC
Carrier PRI Revision: 001.012\_000
SKU: 1103530
Last Reset Cause: Power Down
Resets Count: Expected: 24 Unexpected: 1
---
### Author:  [@asyal](https://mangoh.discourse.group/u/asyal)
#### Post date: [June 12, 2018, 3:47pm UTC](https://mangoh.discourse.group/t/trouble-connecting-to-network/1535/12 "2018-06-12T15:47:14Z")
hmm…did you insert the SIM? How come the SIM gives no info?
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### Author:  [@jlgonzalez](https://mangoh.discourse.group/u/jlgonzalez)
#### Post date: [June 12, 2018, 3:48pm UTC](https://mangoh.discourse.group/t/trouble-connecting-to-network/1535/13 "2018-06-12T15:48:04Z")
Yes, it is inserted. At one point I did get info from it.
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### Author:  [@asyal](https://mangoh.discourse.group/u/asyal)
#### Post date: [June 12, 2018, 3:48pm UTC](https://mangoh.discourse.group/t/trouble-connecting-to-network/1535/14 "2018-06-12T15:48:31Z")
can u power cycle and try again?
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### Author:  [@jlgonzalez](https://mangoh.discourse.group/u/jlgonzalez)
#### Post date: [June 12, 2018, 3:50pm UTC](https://mangoh.discourse.group/t/trouble-connecting-to-network/1535/15 "2018-06-12T15:50:19Z")
Same result after a power cycle.
root@swi-mdm9x28:~# cm sim info
Type: EXTERNAL\_SLOT\_1
ICCID:
Home Network Operator:
EID:
IMSI:
Phone Number:
---
### Author:  [@asyal](https://mangoh.discourse.group/u/asyal)
#### Post date: [June 12, 2018, 3:52pm UTC](https://mangoh.discourse.group/t/trouble-connecting-to-network/1535/16 "2018-06-12T15:52:12Z")
clearly your sim is not inserted properly or not working. If we cant read the SIM, it will never connect
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### Author:  [@jlgonzalez](https://mangoh.discourse.group/u/jlgonzalez)
#### Post date: [June 12, 2018, 3:52pm UTC](https://mangoh.discourse.group/t/trouble-connecting-to-network/1535/17 "2018-06-12T15:52:56Z")
I tried again…
root@swi-mdm9x28:~# cm sim info
Type: EXTERNAL\_SLOT\_1
ICCID: 89332401000007753847
Home Network Operator:
EID:
IMSI: 208011500652538
Phone Number:
---
### Author:  [@asyal](https://mangoh.discourse.group/u/asyal)
#### Post date: [June 12, 2018, 3:54pm UTC](https://mangoh.discourse.group/t/trouble-connecting-to-network/1535/18 "2018-06-12T15:54:22Z")
now try
cm data connect
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### Author:  [@jlgonzalez](https://mangoh.discourse.group/u/jlgonzalez)
#### Post date: [June 12, 2018, 3:54pm UTC](https://mangoh.discourse.group/t/trouble-connecting-to-network/1535/19 "2018-06-12T15:54:49Z")
root@swi-mdm9x28:~# cm data connect
Setting up profile 1
Setting access point name … ok
Setting packet data protocol … ok
Setting Authentication … ok
Connecting … failed
Sun Jan 6 00:05:49 UTC 1980 - Connection Failure: LE\_FAULT
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### Author:  [@asyal](https://mangoh.discourse.group/u/asyal)
#### Post date: [June 12, 2018, 3:55pm UTC](https://mangoh.discourse.group/t/trouble-connecting-to-network/1535/20 "2018-06-12T15:55:18Z")
can you show me the info for logread -f ?
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