EM12-G Issue - Visible

[hw1353]

Hello,

I posted previously about a very similar issue with my EM06 not connecting to visible or verizon following a power outage.

https://wirelessjoint.com/viewtopic.php?t=1289

I discovered that if I remove all of the entries from AT+CGDCONT, other than the "AT+CGDCONT=1" entry with the visible APN entered, the modem will connect and work with visible flawlessly, for days on end, even through several reboots...However if I factory reset the modem(AT+QPRTPARA=3), all of the VZW apn/cgdcont values will be restored, and it will not connect until I remove all of them and leave the VSBLINTERNET apn in AT+CGDCONT=1.

I have recently purchased a EM12g, and I have the same problem I had with my EM06 on visible.

However, I am unable to remove all of the AT+CGDCONT values to test my working theory on my EM06.

I can remove all of the values

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(AT+CGDCONT=2;+CGDCONT=4;+CGDCONT=5;+CGDCONT=6)

But when I try to do:

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AT+CGDCONT=3

All it returns is "ERROR"

I can set the values of AT+CGDCONT=3 to something else, but I cannot remove it. ( I'm also unable to remove AT+CGDCONT=1, also says "ERROR", but I can modify it. (attempting to remove AT+CGDCONT=1 was for testing)

Any thoughts on why the "AT+CGDCONT=3" values cannot be removed on the EM12G?

Tried in a WE826 and a WE1326v5, same result, I have not tried via USB in Windows/Linux to set the AT+CGDCONT values. I can if needed.

Thanks!

[hw1353]

Wanted to add to original post:

SIM works fine in an iphone 6s on visible.
SIM works fine with a MC7455 and MC7354
SIM works fine with a EM06 (provided I follow my instructions above)

The EM12G will connect near immediately with a T-mobile simcard added, regardless of APN, even if I don't change the visible APN, it will still connect on t-mobile...however, then the "AT+CGDCONT=4" cannot be removed, it returns "ERROR" when I try to remove it. Very weird.

Verizon tower is 2 miles away or less, T-mobile tower is 9 miles away. I've been wanting to switch back to verizon/visible because I just can't pull in any upload over t-mobile, download is fine.

[Didneywhorl]

Run

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AT+CGACT?

this should tell you which one of the pdp contexts are active. Any active one cannot be erased, but can be replaced. You can disable them, or swap them.

the output is like:

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AT+CGACT?
+CGACT: 1,1
+CGACT: 2,0
+CGACT: 3,0
+CGACT: 4,0

This shows 4 contexts loaded, and #1 is active (the '0' after the comma denotes active, a '0' is inactive), all others not active.


A deactivate example:

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AT+CGACT=0,4

This deactivates pdp context #4 (+CGDCONT=4)

so for your case:

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AT+CGACT=0,1

to deactivate #1 and allow it to be changed, though it may still not be erasable.

I would just change it to what you want instead of wiping it.

Note the order of the info is opposite between the query command (+CGACT?) and setting command (+CGACT=#,#). In the query output its pdp context reference #, then active or inactive. In the set command you tell it active or inactive then which one to do this to.

[hw1353]

Thanks for the reply Didney.

This was my output of AT+CGACT

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+CGACT: 1,0
+CGACT: 3,0

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I was unable to set either one of these to active with

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AT+CGACT=1,1

Would return ERROR.

This did however, lead me down a rabbit hole, reviewing AT command manuals and my previous post and the comments from Yipzy

Long story short...I got it working on visible/verizon. But there is an issue, observed at the end of the post

First I removed modem from my enclosure and attached it to my USB adapter, and using the Hueawi terminal, I was able to make some changes.

(I originally tried this with the visible sim card inserted in my usb adapter, but a few of these changes below would not persist through a power cycle until I removed the SIM, FWIW)

Per Yipzy's instructions:

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AT+QMBNCFG="AutoSel",0 

Turn off autoselect of carrier firmware. (This was part of the main issue, it was forcing verizon carrier firmware, and I think it didn't like the VSBLINTERNET)

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AT+QMBNCFG="Deactivate"

I was a little unclear on this, I believe this disables the rewriting of the APN values in AT+CGDCONT?

I tried the visible sim again, and it was doing the same thing.

When I ran AT+QMBNCFG="List", I noticed that it was still using the Verizon firmware. I found the only one labeled "generic", and then set it to use that firmware.

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AT+QMBNCFG="Select","ROW_Generic_3GPP_PTCRB_GCF"

I reset the modem, and now with the visible SIM inserted, I see:

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AT+QMBNCFG="List"
+QMBNCFG: "List",0,1,1,"ROW_Generic_3GPP_PTCRB_GCF",0x0801FE02,201910231
+QMBNCFG: "List",1,0,0,"hVoLTE-Verizon",0x0801010E,201908221
+QMBNCFG: "List",2,0,0,"ROW_Commercial",0x0801080A,201904121
+QMBNCFG: "List",3,0,0,"Commercial-Sprint",0x08010204,202005271
+QMBNCFG: "List",4,0,0,"ChungHwa_Taiwan_Commercial",0x0801FD01,201906281
+QMBNCFG: "List",5,0,0,"TaiwanMobile_Commercial",0x08014100,201906281
+QMBNCFG: "List",6,0,0,"FarEastOne_Taiwan_Commercial",0x08014000,201910221
+QMBNCFG: "List",7,0,0,"FirstNet",0x08015300,201904081
+QMBNCFG: "List",8,0,0,"Commercial-Reliance",0x08011B0C,201903181
+QMBNCFG: "List",9,0,0,"Telus_Canada",0x08014900,201905101
+QMBNCFG: "List",10,0,0,"TEF_Germany_Commercial",0x08010CC0,201910291
+QMBNCFG: "List",11,0,0,"France-Commercial-Orange",0x08010B21,201906281
+QMBNCFG: "List",12,0,0,"Spain-Non_VoLTE-Telefonica",0x08010C20,201910291
+QMBNCFG: "List",13,0,0,"Commercial-DT-VOLTE",0x08011F1F,201902011
+QMBNCFG: "List",14,0,0,"Germany-VoLTE-Vodafone",0x08010449,201906281
+QMBNCFG: "List",15,0,0,"VoLTE-ATT",0x08010335,202003041
+QMBNCFG: "List",16,0,0,"UK-VoLTE-Vodafone",0x08010426,201908011
+QMBNCFG: "List",17,0,0,"Telstra_Australia_Commercial",0x08010F00,201908191
+QMBNCFG: "List",18,0,0,"Commercial-KDDI",0x08010709,201810221
+QMBNCFG: "List",19,0,0,"Commercial-SBM",0x08011C0B,202005261
+QMBNCFG: "List",20,0,0,"Commercial-DCM",0x08010D0D,202002131
+QMBNCFG: "List",21,0,0,"OpenMkt-Commercial-CU",0x08011502,201810121
+QMBNCFG: "List",22,0,0,"VoLTE_OPNMKT_CT",0x080113E0,201912191
+QMBNCFG: "List",23,0,0,"Volte_OpenMkt-Commercial-CMCC",0x08012010,202002061

Once this is changed, I can edit the values(and remove them as well) of AT+CGDCONT and it will connect on visible.

The one caveat I have noticed is that it will not do any type of CA once configured like this. I can confirm the tower does CA with another sierra MC7455. It will only connect on a single band 13,4 or 66. So no 13+66 or 13+4 aggregation.

Is this a result of using the "ROW_Generic_3GPP_PTCRB_GC" firmware?

Still is able to do CA on t-mobile.

I have good verizon signal, just poor everything else. I've been using tmobile the past few months, but I want to see if I can make visible work decently, and then maybe get some sort of post paid verizon plan. I dont have LOS but the tower is only about 3 miles away. This is on a 20' mast with 15dBI antennas.

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AT+QENG="servingcell"
+QENG: "servingcell","NOCONN","LTE","FDD",311,480,1DA9C0C,105,66611,66,4,4,792E,-100,-7,-76,19,-,-,-

[Didneywhorl]

Thanks for the reply Didney.
....

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AT+QMBNCFG="Deactivate"

I was a little unclear on this, I believe this disables the rewriting of the APN values in AT+CGDCONT?

The Deactivate command turns off the currently selected MBN profile. You turn off autosel first so that it doesnt try to activate it again after deactivating it.

After you ran the deactivate command, did you reset the modem via

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at+cfun=1,1

?

I tried the visible sim again, and it was doing the same thing.

When I ran AT+QMBNCFG="List", I noticed that it was still using the Verizon firmware. I found the only one labeled "generic", and then set it to use that firmware.

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AT+QMBNCFG="Select","ROW_Generic_3GPP_PTCRB_GCF"

I reset the modem, and now with the visible SIM inserted, I see:

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AT+QMBNCFG="List"
+QMBNCFG: "List",0,1,1,"ROW_Generic_3GPP_PTCRB_GCF",0x0801FE02,201910231
+QMBNCFG: "List",1,0,0,"hVoLTE-Verizon",0x0801010E,201908221
+QMBNCFG: "List",2,0,0,"ROW_Commercial",0x0801080A,201904121
+QMBNCFG: "List",3,0,0,"Commercial-Sprint",0x08010204,202005271
+QMBNCFG: "List",4,0,0,"ChungHwa_Taiwan_Commercial",0x0801FD01,201906281
+QMBNCFG: "List",5,0,0,"TaiwanMobile_Commercial",0x08014100,201906281
+QMBNCFG: "List",6,0,0,"FarEastOne_Taiwan_Commercial",0x08014000,201910221
+QMBNCFG: "List",7,0,0,"FirstNet",0x08015300,201904081
+QMBNCFG: "List",8,0,0,"Commercial-Reliance",0x08011B0C,201903181
+QMBNCFG: "List",9,0,0,"Telus_Canada",0x08014900,201905101
+QMBNCFG: "List",10,0,0,"TEF_Germany_Commercial",0x08010CC0,201910291
+QMBNCFG: "List",11,0,0,"France-Commercial-Orange",0x08010B21,201906281
+QMBNCFG: "List",12,0,0,"Spain-Non_VoLTE-Telefonica",0x08010C20,201910291
+QMBNCFG: "List",13,0,0,"Commercial-DT-VOLTE",0x08011F1F,201902011
+QMBNCFG: "List",14,0,0,"Germany-VoLTE-Vodafone",0x08010449,201906281
+QMBNCFG: "List",15,0,0,"VoLTE-ATT",0x08010335,202003041
+QMBNCFG: "List",16,0,0,"UK-VoLTE-Vodafone",0x08010426,201908011
+QMBNCFG: "List",17,0,0,"Telstra_Australia_Commercial",0x08010F00,201908191
+QMBNCFG: "List",18,0,0,"Commercial-KDDI",0x08010709,201810221
+QMBNCFG: "List",19,0,0,"Commercial-SBM",0x08011C0B,202005261
+QMBNCFG: "List",20,0,0,"Commercial-DCM",0x08010D0D,202002131
+QMBNCFG: "List",21,0,0,"OpenMkt-Commercial-CU",0x08011502,201810121
+QMBNCFG: "List",22,0,0,"VoLTE_OPNMKT_CT",0x080113E0,201912191
+QMBNCFG: "List",23,0,0,"Volte_OpenMkt-Commercial-CMCC",0x08012010,202002061

Once this is changed, I can edit the values(and remove them as well) of AT+CGDCONT and it will connect on visible.

Its possible the EM12 has issues with the MBN profile commands, it never really works right on the EM12. Which firmware are you using again? Not sure if you said.

The one caveat I have noticed is that it will not do any type of CA once configured like this. I can confirm the tower does CA with another sierra MC7455. It will only connect on a single band 13,4 or 66. So no 13+66 or 13+4 aggregation.

Is this a result of using the "ROW_Generic_3GPP_PTCRB_GC" firmware?

Still is able to do CA on t-mobile.

I have good verizon signal, just poor everything else. I've been using tmobile the past few months, but I want to see if I can make visible work decently, and then maybe get some sort of post paid verizon plan. I dont have LOS but the tower is only about 3 miles away. This is on a 20' mast with 15dBI antennas.

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AT+QENG="servingcell"
+QENG: "servingcell","NOCONN","LTE","FDD",311,480,1DA9C0C,105,66611,66,4,4,792E,-100,-7,-76,19,-,-,-

The firmware is generic overall, that "ROW_Generic_3GPP_PTCRB_GC" isnt a firmware reference, its just the MBN profile for a generic pdp context file. (APN's to autoload)

If your not getting CA it may be a different issue.

What does

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AT+QCAINFO

return?

or

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AT+QENG="neighbourcell"?

It is spelled with the 'u' in there. Oddly.

The Neighbourcell one tells you what is available for CA.

Make absolutely certain your making comparisons on the same cell tower radios. You may just not have CA availble via Verizon on that tower.

You might also want to turn off roaming. I think the command is:

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at+qcfg="roamservice",1

1 turns it off, 255 is auto and I think its 2 to make it explicitly on. Top of my head right now.

[kzaudio]

@hw1353 I have a EM12G and Visible. Haven't been able to get it working. Can you maybe post what you did to make it work? I've been messing with this for 3 days and could use some direction. Thanks for any help

[hw1353]

@hw1353 I have a EM12G and Visible. Haven't been able to get it working. Can you maybe post what you did to make it work? I've been messing with this for 3 days and could use some direction. Thanks for any help

Is your EM12G doing the same thing? Mine would go through all of the normal startup process in the debug log, and then just sit there and never connect...

(With visible sim inserted)What is the output of ?

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AT+QMBNCFG="List"

We could then see which MBN profile your using....otherwise, I removed the SIM and did the following:

I first disabled automatic MBN profile selection with:

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AT+QMBNCFG="AutoSel",0 

Then deactivated the current MBN profile:

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AT+QMBNCFG="Deactivate"

I had to change my MBN profile to the generic context from the verizon one(thanks for the clarification didney)

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AT+QMBNCFG="Select","ROW_Generic_3GPP_PTCRB_GCF"

^yours might be different, check the output of "AT+QMBNCFG="List"" to be sure.

Once I did that, I removed all of the entries(if any) from AT+CGDCONT?

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AT+CGDCONT=2;+CGDCONT=3;+CGDCONT=4;+CGDCONT=5

Then set the visible APN

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AT+CGDCONT=1,"IP","VSBLINTERNET"

Then reboot the modem

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AT+CFUN=1,1

If these settings don't persist through restarting the modem, power off, remove the SIM card, and try again. (or remove the sim card from the get-go)

[hw1353]

After you ran the deactivate command, did you reset the modem via

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at+cfun=1,1

?





Its possible the EM12 has issues with the MBN profile commands, it never really works right on the EM12. Which firmware are you using again? Not sure if you said.



The firmware is generic overall, that "ROW_Generic_3GPP_PTCRB_GC" isnt a firmware reference, its just the MBN profile for a generic pdp context file. (APN's to autoload)

If your not getting CA it may be a different issue.

What does

Code: Select all

AT+QCAINFO

return?

or

Code: Select all

AT+QENG="neighbourcell"?

It is spelled with the 'u' in there. Oddly.

The Neighbourcell one tells you what is available for CA.

Make absolutely certain your making comparisons on the same cell tower radios. You may just not have CA availble via Verizon on that tower.

You might also want to turn off roaming. I think the command is:

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at+qcfg="roamservice",1

1 turns it off, 255 is auto and I think its 2 to make it explicitly on. Top of my head right now.

I did reboot the modem after the deactivate command. The "generic" mbn profile selection persists through a power cycle, for some reason it would not with the SIM inserted.

The modem will connect fine on either Band 13,4 or 66, it just will not aggregate. This is just with visible...I can put my t-mobile SIM back in, re-orient the antenna, and I can get CA on 2+66, 2+4, 2+12 and 66+66. Just 0 CA with the visible SIM.

When I first started dabbling in this LTE stuff, I started with a verizon reseller and a W826-T2 from The Wireless Haven with sierra wireless MC7455. I had no problems getting 13+4 CA there. The reseller was too pricey for my taste, and I switched to visible, but the latency was bothersome while gaming, so I switched to t-mobile, I can get decent download (modem will CA 2+66 and 2+4 with great DL speeds, but can only get about 1.5 upload.

I have my MC7455 and a verizon hotspot card loaned to a work friend thats working from home and had no options for internet, Once I have that back I can retest with an actual verizon SIM and sierra modem to verify the CA is indeed working. (He ordered his own setup from thewirelesshaven.com )

I keep hitting the visible hotspot throttle...I can change the TTL, reboot, and then stuck @ 5mbps...I can modify the TTL while the router is running, and the hotspot limit disappears, but rebooting (while leaving the ttl changed) causes the 5mbps limit to appear again. I guess visible is getting crafty/wise to the ttl modifications? Just wondering if there is not any CA happening because it knows I'm using visible hotspot? Might be a stupid thought. I'll have a vzwinternet sim card back soon to fully test.

I am seeing the other bands from the neighbourcell output. I switched back to t-mobile in the interim, or I'd post them. I do have roamservice turned off.

[Didneywhorl]

On that CA issue, I'm lost. That is odd.

The TTL thing I have heard of, but never experienced myself. I guess it just depends on the region or even the tower?

[Latin167]

WE826-T2 and EM-12G LTE not working with visible please help. Just got EM-12 because wanted to used band 66. If put in T-mobile sim card in works just fine.

[Didneywhorl]

WE826-T2 and EM-12G LTE not working with visible please help. Just got EM-12 because wanted to used band 66. If put in T-mobile sim card in works just fine.

Did you clear out the pdp contexts, set the APN as vsblinternet only, and turn off MBN profiles? Read through the thread for the same advice.

[gscheb]

WE826-T2 and EM-12G LTE not working with visible please help. Just got EM-12 because wanted to used band 66. If put in T-mobile sim card in works just fine.

https://wirelessjoint.com/viewtopic.php?f=32 ... lit#p11658

[hw1353]

Wanted to follow up on this. Was able to cure the "CA" issue with visible and this EM12G.

When using the generic MBN Profile"

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"ROW_Generic_3GPP_PTCRB_GCF"

Visible would connect, but only on one band.

Was unable to replicate this on a MC7455 inside the same setup, did 4+13 with no issue.

What I found out was, if I use the ROW_Commercial Profile, the CA starts working again.

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AT+QMBNCFG="LIST"
+QMBNCFG: "List",0,1,1,"ROW_Commercial",0x0801080A,201904121
+QMBNCFG: "List",1,0,0,"ROW_Generic_3GPP_PTCRB_GCF",0x0801FE02,201910231
+QMBNCFG: "List",2,0,0,"Commercial-Sprint",0x08010204,202005271
+QMBNCFG: "List",3,0,0,"hVoLTE-Verizon",0x0801010E,201908221
+QMBNCFG: "List",4,0,0,"ChungHwa_Taiwan_Commercial",0x0801FD01,201906281
+QMBNCFG: "List",5,0,0,"TaiwanMobile_Commercial",0x08014100,201906281
+QMBNCFG: "List",6,0,0,"FarEastOne_Taiwan_Commercial",0x08014000,201910221
+QMBNCFG: "List",7,0,0,"FirstNet",0x08015300,201904081
+QMBNCFG: "List",8,0,0,"Commercial-Reliance",0x08011B0C,201903181
+QMBNCFG: "List",9,0,0,"Telus_Canada",0x08014900,201905101
+QMBNCFG: "List",10,0,0,"TEF_Germany_Commercial",0x08010CC0,201910291
+QMBNCFG: "List",11,0,0,"France-Commercial-Orange",0x08010B21,201906281
+QMBNCFG: "List",12,0,0,"Spain-Non_VoLTE-Telefonica",0x08010C20,201910291
+QMBNCFG: "List",13,0,0,"Commercial-DT-VOLTE",0x08011F1F,201902011
+QMBNCFG: "List",14,0,0,"Germany-VoLTE-Vodafone",0x08010449,201906281
+QMBNCFG: "List",15,0,0,"VoLTE-ATT",0x08010335,202003041
+QMBNCFG: "List",16,0,0,"UK-VoLTE-Vodafone",0x08010426,201908011
+QMBNCFG: "List",17,0,0,"Telstra_Australia_Commercial",0x08010F00,201908191
+QMBNCFG: "List",18,0,0,"Commercial-KDDI",0x08010709,201810221
+QMBNCFG: "List",19,0,0,"Commercial-SBM",0x08011C0B,202005261
+QMBNCFG: "List",20,0,0,"Commercial-DCM",0x08010D0D,202002131
+QMBNCFG: "List",21,0,0,"OpenMkt-Commercial-CU",0x08011502,201810121
+QMBNCFG: "List",22,0,0,"VoLTE_OPNMKT_CT",0x080113E0,201912191
+QMBNCFG: "List",23,0,0,"Volte_OpenMkt-Commercial-CMCC",0x08012010,202002061

I get the 2xCA I would expect:

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AT+QCAINFO
+QCAINFO: "pcc",5230,50,"LTE BAND 13",1,105,-90,-11,-62,14
+QCAINFO: "scc",66611,75,"LTE BAND 66",1,105,-98,-9,-78,21,DL

What I did(after doing what I already did above, IE, disabling auto-select of profile):

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AT+QMBNCFG="ROW_Commercial"
AT+QCFG="band",0,2000001001300185a (All LTE bands)
AT+CFUN=1,1

CA works as intended now, not sure why it doesn't work with the "Generic" profile, but it doesn't. Works fine with every other carrier than verizon(Sprint/calyx, ATT, T-mobile)

Just in-case anyone else has this issue with an EM12G / Visible and you're unable to get CA to work.

[BitHaulers]

When I try the AT+QMBNCFG="List" in an EP06A or EM12G, I get

"output: "

So it's blank.

Anyone else seen this? EC25AF outputs as expected.