# Verizon certification modem HL7618RD

**URL:** <https://forum.sierrawireless.com/t/verizon-certification-modem-hl7618rd/22297>\
**Category:** Uncategorized\
**Created:** [December 3, 2020, 9:00pm UTC](https://forum.sierrawireless.com/t/verizon-certification-modem-hl7618rd/22297 "2020-12-03T21:00:25Z")\
**Posts on this page:** 10\
**Page:** 1

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**Author:** ![rafael.dias](https://sea1.discourse-cdn.com/flex025/user_avatar/forum.sierrawireless.com/rafael.dias/32/5193_2.png) [@rafael.dias](https://forum.sierrawireless.com/u/rafael.dias)\
**Post date:** [December 3, 2020, 9:00pm UTC](https://forum.sierrawireless.com/t/verizon-certification-modem-hl7618rd/22297/1 "2020-12-03T21:00:25Z")

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Hi!  
I want to perform some tests with out equipment to pass in a Verizon certification. Well, this equipment uses a modem HL7618RD and we want to use the PDP 1 with APN VZWINTERNET.

The modem connects into the verizon network and I used the command AT+CGDCONT= 1,“IPV4V6”, “VZWINTERNET” and I got the following results:

> at+cgdcont= 1,“IPV4V6”, “VZWINTERNET”  
> +CME ERROR: 4

the at+cgdcont? returns the following:

+CGDCONT: 1,“IPV4V6”,“VZWIMS”,“”,0,0  
+CGDCONT: 2,“IPV4V6”,“vzwadmin”,“”,0,0,0,0,0,0  
+CGDCONT: 3,“IPV4V6”,“VZWINTERNET”,“”,0,0,0,0,0,0  
+CGDCONT: 4,“IPV4V6”,“PDIWIDWB.GW15.VZWENTP”,“”,0,0,0,0,0,0  
+CGDCONT: 5,“IPV4V6”,“VZWINTERNET”,“”,0,0,0,0,0,0  
+CGDCONT: 6,“IPV4V6”,“VZWINTERNET”,“”,0,0,0,0,0,0  
OK

The verizon wants that the PDP 1 should be VZWINTERNET.

Has anyone here experienced this type of situation?

thanks,  
Rafael Dias

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**Author:** ![Donald](https://avatars.discourse-cdn.com/v4/letter/d/ac8455/32.png) [@Donald](https://forum.sierrawireless.com/u/Donald)\
**Post date:** [December 4, 2020, 6:58am UTC](https://forum.sierrawireless.com/t/verizon-certification-modem-hl7618rd/22297/2 "2020-12-04T06:58:32Z")

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Hi rafael.dias,

Verizon has a specific configuration, so Sierra Wireless also releases the specific firmware for Verizon customers. The CID=3 with APN=VZWINTERNET is the default Internet APN in Verizon. The APN configuration is updated on specific Verizon firmware.

By default, PDP context IP for Verizon firmware is:  
• CID=1 with APN=VZWIMS is reserved for IMS in Verizon (SMS over IMS)  
• CID=2 with APN=VZWADMIN is reserved for Verizon Administration (SIM provision, OMADM, etc.)  
• CID=3 with APN=VZWINTERNET is the default Internet APN in Verizon  
• CID=4 with APN=VZWAPP is the default application APN in Verizon

AT+CGDCONT?  
+CGDCONT: 1,“IPV4V6”,“VZWIMS”,"",0,0

+CGDCONT: 2,“IPV4V6”,“vzwadmin”,"",0,0,0,0,0,0

+CGDCONT: 3,“IPV4V6”,“VZWINTERNET”,"",0,0,0,0,0,0

+CGDCONT: 4,“IPV4V6”,“VZWAPP”,"",0,0,0,0,0,0

OK

Please find the log file as an attachment for your reference. [CGDCONT.txt](https://forum.sierrawireless.com/uploads/short-url/i6PZgVfIuzRS3slaDbMzJs4816r.txt) (962 Bytes)

You cat get it here [AirPrime HL7618RD VZW Firmware\_V1.10 (sierrawireless.com)](https://source.sierrawireless.com/resources/airprime/software/hl7618rd-vzw-firmware_v1,-d-,10/#sthash.ekdhQOZS.dpbs)

Help to tick “Solutions” if your question is answered.

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<div class="post-metadata">

**Author:** ![rafael.dias](https://sea1.discourse-cdn.com/flex025/user_avatar/forum.sierrawireless.com/rafael.dias/32/5193_2.png) [@rafael.dias](https://forum.sierrawireless.com/u/rafael.dias)\
**Post date:** [December 4, 2020, 6:30pm UTC](https://forum.sierrawireless.com/t/verizon-certification-modem-hl7618rd/22297/3 "2020-12-04T18:30:31Z")

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Hi Donald,

the modem firmware version that we have in our product is the same you recommended:

> RHL7618RD.V.1.10.151600.201802201619.x7120m\_1

do you have another tip?  
best regards,  
rafael dias

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**Author:** ![Donald](https://avatars.discourse-cdn.com/v4/letter/d/ac8455/32.png) [@Donald](https://forum.sierrawireless.com/u/Donald)\
**Post date:** [December 7, 2020, 7:25am UTC](https://forum.sierrawireless.com/t/verizon-certification-modem-hl7618rd/22297/4 "2020-12-07T07:25:01Z")

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Hi rafael.dias

I don’t have any tips. Module HL7618RD can automatically register Verizon network after I updated Verizon firmware V1.10.

> [@rafael.dias](#):
>
> the PDP 1 should be VZWINTERNET.

The PDP 1 should be the default APN VZWIMS. ( Not VZWINTERNET)

Do you have a default APN after updating Verizon firmware?

AT+CGDCONT?  
+CGDCONT: 1,“IPV4V6”,“VZWIMS”,“”,0,0

+CGDCONT: 2,“IPV4V6”,“vzwadmin”,“”,0,0,0,0,0,0

+CGDCONT: 3,“IPV4V6”,“VZWINTERNET”,“”,0,0,0,0,0,0

+CGDCONT: 4,“IPV4V6”,“VZWAPP”,“”,0,0,0,0,0,0

OK  
Is your module registered to the network with a default APN?

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<div class="post-metadata">

**Author:** ![rafael.dias](https://sea1.discourse-cdn.com/flex025/user_avatar/forum.sierrawireless.com/rafael.dias/32/5193_2.png) [@rafael.dias](https://forum.sierrawireless.com/u/rafael.dias)\
**Post date:** [December 7, 2020, 8:52pm UTC](https://forum.sierrawireless.com/t/verizon-certification-modem-hl7618rd/22297/5 "2020-12-07T20:52:26Z")

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hi!

I asked the Verizon guys and I received this message:

> For Device to communicate with Internet we would need VZWINTERNET as default. Whatever is the index of this APN, it has to be used for modem attach to network.
> 
> You can start from configuring the below.
> 
> AT+CGDCONT =1,“IPV4V6”,“VZWINTERNET”,“”,0,0,0,0,0,0
> 
> Regards,
> 
> Srikanth

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<div class="post-metadata">

**Author:** ![Donald](https://avatars.discourse-cdn.com/v4/letter/d/ac8455/32.png) [@Donald](https://forum.sierrawireless.com/u/Donald)\
**Post date:** [December 8, 2020, 8:42am UTC](https://forum.sierrawireless.com/t/verizon-certification-modem-hl7618rd/22297/6 "2020-12-08T08:42:44Z")

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Hi rafael.dias,

Do you have a default APN after updating Verizon firmware?

> [@Donald](#):
>
> AT+CGDCONT?  
> +CGDCONT: 1,“IPV4V6”,“VZWIMS”,“”,0,0
> 
> +CGDCONT: 2,“IPV4V6”,“vzwadmin”,“”,0,0,0,0,0,0
> 
> +CGDCONT: 3,“IPV4V6”,“VZWINTERNET”,“”,0,0,0,0,0,0
> 
> +CGDCONT: 4,“IPV4V6”,“VZWAPP”,“”,0,0,0,0,0,0
> 
> OK  
> Is your module registered to the network with a default APN?

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<div class="post-metadata">

**Author:** ![rafael.dias](https://sea1.discourse-cdn.com/flex025/user_avatar/forum.sierrawireless.com/rafael.dias/32/5193_2.png) [@rafael.dias](https://forum.sierrawireless.com/u/rafael.dias)\
**Post date:** [December 8, 2020, 9:32pm UTC](https://forum.sierrawireless.com/t/verizon-certification-modem-hl7618rd/22297/7 "2020-12-08T21:32:27Z")

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the default APNs are the APNs present at the first question at this thread.

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<div class="post-metadata">

**Author:** ![Donald](https://avatars.discourse-cdn.com/v4/letter/d/ac8455/32.png) [@Donald](https://forum.sierrawireless.com/u/Donald)\
**Post date:** [December 9, 2020, 3:26am UTC](https://forum.sierrawireless.com/t/verizon-certification-modem-hl7618rd/22297/8 "2020-12-09T03:26:26Z")

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Hi rafael.dias

Please download HL7618RD firmware to module to restore module to default APN as below:  
Is your module registered to the network with the default APN as below?

AT+CGDCONT?  
+CGDCONT: 1,“IPV4V6”,“VZWIMS”,"",0,0

+CGDCONT: 2,“IPV4V6”,“vzwadmin”,"",0,0,0,0,0,0

+CGDCONT: 3,“IPV4V6”,“VZWINTERNET”,"",0,0,0,0,0,0

+CGDCONT: 4,“IPV4V6”,“VZWAPP”,"",0,0,0,0,0,0

OK

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<div class="post-metadata">

**Author:** ![rafael.dias](https://sea1.discourse-cdn.com/flex025/user_avatar/forum.sierrawireless.com/rafael.dias/32/5193_2.png) [@rafael.dias](https://forum.sierrawireless.com/u/rafael.dias)\
**Post date:** [December 9, 2020, 1:01pm UTC](https://forum.sierrawireless.com/t/verizon-certification-modem-hl7618rd/22297/9 "2020-12-09T13:01:15Z")

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I’ll do that.

Just to inform, yesterday I wrote to our Sierra Wireless vendor and he answered:

> please check command AT+HBHV? =\> AT Command Guide, page 106
> 
> For Verizon modules like HL7618RD, some PDP contexts should be by default: +HBHV: 2,0
> 
> You should try to set AT+HBHV=2,1 and then modify the AT+CGDCONT setting
> 
> The module is still shown on the Verizon site as a certified module, so it should be fine to use it.
> 
> [https://opendevelopment.verizonwireless.com/design-and-build/approved-modules/module/6815](https://opendevelopment.verizonwireless.com/design-and-build/approved-modules/module/6815)
> 
> I assume that Verizon has made some changes to their preferred settings.
> 
> Also, the Verizon network might override some settings using over-the-air device management functions.

Well, I tried this command and it was possible to change the APN configuration:

> +CGREG: 0  
> +CGREG: 2  
> at  
> OK  
> AT+HBHV=2,1  
> OK  
> at+cgdcont=1,“IPV4V6”,“VZWINTERNET”  
> OK  
> +CGREG: 0  
> +CGREG: 2  
> at+cgdcont?  
> +CGDCONT: 1,“IPV4V6”,“VZWINTERNET”,“”,0,0,0,0,0,0  
> +CGDCONT: 2,“IPV4V6”,“vzwadmin”,“”,0,0,0,0,0,0  
> +CGDCONT: 3,“IPV4V6”,“VZWINTERNET”,“”,0,0,0,0,0,0  
> +CGDCONT: 4,“IPV4V6”,“VZWAPP”,“”,0,0,0,0,0,0  
> OK

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<div class="post-metadata">

**Author:** ![Donald](https://avatars.discourse-cdn.com/v4/letter/d/ac8455/32.png) [@Donald](https://forum.sierrawireless.com/u/Donald)\
**Post date:** [December 15, 2020, 2:20am UTC](https://forum.sierrawireless.com/t/verizon-certification-modem-hl7618rd/22297/10 "2020-12-15T02:20:45Z")

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Hi @rafael.dias

Since the issue is resolved. Please help to tick “Solutions” on the answer.
