[SOLVED: Queued Bug for Fix] GL-MiFi EC25-AF Verizon SIM Intermittent "SIM card is not registered"

Technical Support for Routers
1

All -

I have a Verizon Postpaid account.

I took a pre-activated SIM card and popped it into the GL-MiFi EC25-AF modem (which covers several Verizon bands). The SIM had already been activated in another device so it worked.

I am having intermittent success accessing the internet but occasionally instead of showing the signal strength, I’m seeing a “SIM card not registered” message displayed. Sometimes it goes away and I am usually able to access the internet while I see the message; however, occasionally the internet does not work.

I’m wondering if you have any tips on fixing this.

Regards,

Michael

2

When this happens, can you ssh to the router (or use luci) to get the log?

logread
dmesg

3

Yes. What specifically are you looking for in the logs or do you want me to private message the to you?

4

if you can send the full log that will be better. I am not sure if the log can tell anything.

If necessary need to issue some AT command. But pls send the log first.

5

Hi,mbw

When that happens, you can use AT+CREG? And AT+QNWINFO query network registration information

thanks

6

AT+CREG = "OK"

AT+QNWINFO

+QNWINFO: "FDD LTE","311480","LTE BAND 4",2125

OK
7

Notice the "? "after the command.the command is AT+CREG?

8

My fault:

+CREG: 0,3

OK
9

I should add that the internet is generally working even when the " SIM card not registered" is displayed and AT+CREG? displays +CREG: 0,3. Seeing speeds of about 10-15Mbps Down and 5-10Mbps up.

10

According to modem’s manual, this result indicates that the registration was rejected

11

Weird. The Internet seems to be working 95% of the time even when this is happening.

12

The correct IMEI is also showing up on my Verizon account (it matches the modem IMEI for registered device).

13

I need to get some information from QUECTEL first

14

Sounds good. Some other output in case you need it.

+COPS: 0,0,"Verizon Wireless",7

OK

+CSQ: 29,99

OK
15

Could you help check AT+CEREG? and the AT + CGREG? ?

16 
+CEREG: 0,1

OK

+CGREG: 0,1

OK
17

Thanks,

I asked FAE of QUECTEL, his feedback is whether the module needs to register the network according to AT+CREG?, AT+CGREG? and the AT+CEREG?
I just judged AT+CREG?, Therefore, this is a BUG in the code

18

Thank you. Do you need me to submit a bug report or will you add one to the queue?

Regards,

Michael

19

You can submit it to the BUG list, and I’ll fix it.

20

Bug GL.iNet - Connecting The World To Secure Wi-Fi has been submitted for tracking this issue.

Regards,

Michael