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T-Mobile Connection Issue

Posted: Thu Aug 19, 2021 11:17 am
by Joe43wv
I'm trying to get a NEXQ6GO-M with Quectel EM06-A Modem to connect to T-Mobile but am running into a roadblock. Here are my settings:

APN: fast.t-mobile.com
TTL: Tried both 64 and 65

WAN1 Port: MBIM

WAN1 is showing the following error: Error: Unknown error (NO_REGISTRATION)

I've tested the SIM card and the sim card is working just fine. Any thoughts on as to why it's not connecting?

Re: T-Mobile Connection Issue

Posted: Thu Aug 19, 2021 1:55 pm
by LoveMeSomeCALTE
How are you testing the SIM card? Putting into a phone? What kind?

Re: T-Mobile Connection Issue

Posted: Thu Aug 19, 2021 2:06 pm
by Joe43wv
Yes, iPhone 6S Plus.

Re: T-Mobile Connection Issue

Posted: Thu Aug 19, 2021 2:48 pm
by LoveMeSomeCALTE
If it works in a phone but stop working the moment you put it into the Modem, then it's not a compatible plan.

What's your plan?

Re: T-Mobile Connection Issue

Posted: Mon Aug 23, 2021 2:04 pm
by Joe43wv
It's on the T-Mobile Essentials plan.

Re: T-Mobile Connection Issue

Posted: Mon Aug 23, 2021 8:27 pm
by Didneywhorl
essentials only has 3G for hotspot, that may be part of the issue.

WAN1 is showing the following error: Error: Unknown error (NO_REGISTRATION) may be the network denying you though, without even trying.

Look in the Status-> System Log and do a search for "MBIM" to find all the modem messages, when the modem is in MBIM. If the modem is in QMI then search for "QMI". (Without the quote marks in the search)

Did you turn off the APN autoload that the EP06A does?

AT+QMBNCFG="AutoSel",0

then

AT+QMBNCFG="Deactivate"

Check the APNs set on the modem with:

AT+CGDCONT?

Re: T-Mobile Connection Issue

Posted: Mon Aug 23, 2021 8:28 pm
by Didneywhorl
Also make sure you are setting both TTL and HL

https://wirelessjoint.com/viewtopic.php?f=21&t=2752

Re: T-Mobile Connection Issue

Posted: Tue Aug 24, 2021 9:21 am
by Joe43wv
Would switching to QMI resolve the issue or should I keep it on MBIM?

Re: T-Mobile Connection Issue

Posted: Tue Aug 24, 2021 10:20 am
by Didneywhorl
Ive had better luck on mbim, but it wouldn't hurt to try

Re: T-Mobile Connection Issue

Posted: Thu Aug 26, 2021 10:31 am
by Joe43wv
I've lost the AT commands to switch it back and forth to QMI and back to MBIM, could you provide me with those please?

Re: T-Mobile Connection Issue

Posted: Thu Aug 26, 2021 10:40 am
by gscheb
Joe43wv wrote: Thu Aug 26, 2021 10:31 am I've lost the AT commands to switch it back and forth to QMI and back to MBIM, could you provide me with those please?
Quectel Set Connection Modes

QMI/PPP/Default

Code: Select all

AT+QCFG="usbnet",0
MBIM

Code: Select all

AT+QCFG="usbnet",2

Re: T-Mobile Connection Issue

Posted: Thu Aug 26, 2021 4:28 pm
by Didneywhorl
Joe43wv wrote: Thu Aug 26, 2021 10:31 am I've lost the AT commands to switch it back and forth to QMI and back to MBIM, could you provide me with those please?
For Quectel Modems:

QMI
AT+QCFG="usbnet",0

MBIM
AT+QCFG="usbnet",2

Re: T-Mobile Connection Issue

Posted: Thu Aug 26, 2021 7:20 pm
by LoveMeSomeCALTE
Didneywhorl wrote: Mon Aug 23, 2021 8:27 pm essentials only has 3G for hotspot, that may be part of the issue.
It definitely is. This plan is not meant to be used in a hotspot
Joe43wv wrote: Mon Aug 23, 2021 2:04 pm It's on the T-Mobile Essentials plan.
Sorry, this plan is not meant to be used in a hotspot.

If you chose this plan because it's cheap, look at my latest post to get Magenta Max for $45/mo

Re: T-Mobile Connection Issue

Posted: Mon Oct 04, 2021 12:02 pm
by Joe43wv
Update: I checked their bill and the bill is under Sprint and the SIM card is T-Mobile, does that matter what settings I use?

Re: T-Mobile Connection Issue

Posted: Mon Oct 04, 2021 12:20 pm
by Didneywhorl
It may, but I've found previously that the APN could be just about anything with T-mobile and it would work. Not sure lately though.