SXT w/ EP06-AF - No Such Data Channel

lpr600 · Fri Mar 05, 2021 3:11 pm

I'm a newbie to the SXT and wanted to use it with a Band 13 modem for service on Verizon in the US. I installed the EC25-AF and upgraded ROS to 7.1b4. I have an activated SIM installed that I took out of a working device. I configured the APN.

When I look a the list of interfaces ppp-out1 is there, but when I try to enable it I get:

"Couldn't change Interface <ppp-out1> - no such data channel! (8)"

I tried changing the modem from auto to serial, but that didn't change the result.

Can anyone provide any tips to get this modem working?

Thanks!

SiB · Fri Mar 05, 2021 3:57 pm

AT+QCFG="usbnet" is a key here.

Do you read this?
Quectel EP06-E and wAP R ac (RBwAPGR-5HacD2HnD) viewtopic.php?f=3&t=150368&hilit=EP06+AF#p787894
Quectel EC25-AF MBIM has internal error viewtopic.php?f=1&t=160345

lpr600 · Fri Mar 05, 2021 5:30 pm

Thank you.

Somehow I actually got it to recognize. I reflashed with ROS6, then back to 7.1b4 and it's recognized now. The issue now is that I have "network mode selection failed"

Firmware is EC25AFFAR07A13M4G. I did not tape any pins.

I did read through those threads and many others, but I don't understand where to enter the AT command you listed. Is it still necessary since the modem is recognized? Will that resolve the "network mode selection failed" error?

Thanks for your help!

lpr600 · Fri Mar 05, 2021 6:46 pm

So I was able to learn more about at-chat and determined that it's in MBIM mode:

output: +QCFG: "usbnet",2
OK

No change with the network mode selection error, though, and I've searched the forum for this error and not discovered any results.

SiB · Fri Mar 05, 2021 7:54 pm

/system logging add topics=lte

And show logs

lpr600 · Fri Mar 05, 2021 11:29 pm

Here are the recent log entries.

16:26:03 lte,async,raw lte1: sent AT+QENG="servingcell" 
16:26:03 lte,async,raw lte1: rcvd +QENG: "servingcell","NOCONN","LTE","FDD",311,480,FB6E41A,503,5230,13,3,3,66FE,-95,-6,-71,18,24  
16:26:06 lte,async,raw lte1: sent AT+QENG="servingcell" 
16:26:06 lte,async,raw lte1: rcvd +QENG: "servingcell","NOCONN","LTE","FDD",311,480,FB6E41A,503,5230,13,3,3,66FE,-95,-6,-72,17,24  
16:26:09 lte,async,raw lte1: sent AT+QENG="servingcell" 
16:26:09 lte,async,raw lte1: rcvd +QENG: "servingcell","NOCONN","LTE","FDD",311,480,FB6E41A,503,5230,13,3,3,66FE,-95,-6,-71,17,24  
16:26:12 lte,async,raw lte1: sent AT+QENG="servingcell" 
16:26:12 lte,async,raw lte1: rcvd +QENG: "servingcell","NOCONN","LTE","FDD",311,480,FB6E41A,503,5230,13,3,3,66FE,-95,-6,-71,18,24  
16:26:15 lte,async,raw lte1: sent AT+QENG="servingcell" 
16:26:15 lte,async,raw lte1: rcvd +QENG: "servingcell","NOCONN","LTE","FDD",311,480,FB6E41A,503,5230,13,3,3,66FE,-95,-6,-72,17,24  
16:26:18 lte,async,raw lte1: sent AT+QENG="servingcell" 
16:26:18 lte,async,raw lte1: rcvd +QENG: "servingcell","NOCONN","LTE","FDD",311,480,FB6E41A,503,5230,13,3,3,66FE,-95,-7,-70,16,-  
16:26:21 lte,async,raw lte1: sent AT+QENG="servingcell" 
16:26:21 lte,async,raw lte1: rcvd +QENG: "servingcell","NOCONN","LTE","FDD",311,480,FB6E41A,503,5230,13,3,3,66FE,-95,-7,-70,16,-  
16:26:24 lte,async,raw lte1: sent AT+QENG="servingcell" 
16:26:24 lte,async,raw lte1: rcvd +QENG: "servingcell","NOCONN","LTE","FDD",311,480,FB6E41A,503,5230,13,3,3,66FE,-95,-7,-70,16,-  
16:26:27 lte,async,raw lte1: sent AT+QENG="servingcell" 
16:26:27 lte,async,raw lte1: rcvd +QENG: "servingcell","NOCONN","LTE","FDD",311,480,FB6E41A,503,5230,13,3,3,66FE,-95,-7,-70,16,-  
16:26:30 lte,async,raw lte1: sent AT+QENG="servingcell" 
16:26:30 lte,async,raw lte1: rcvd +QENG: "servingcell","NOCONN","LTE","FDD",311,480,FB6E41A,503,5230,13,3,3,66FE,-92,-4,-71,17,27  
16:26:31 lte,packet,raw lte1 mbim: wdm >>> recv #0 
16:26:31 lte,packet,raw 07000080 40000000 00000000 01000000 
16:26:31 lte,packet,raw 00000000 a289cc33 bcbb8b4f b6b0133e 
16:26:31 lte,packet,raw c2aae6df 0b000000 14000000 0d000000 
16:26:31 lte,packet,raw 63000000 05000000 02000000 ffffffff 
16:26:33 lte,async,raw lte1: sent AT+QENG="servingcell" 
16:26:33 lte,async,raw lte1: rcvd +QENG: "servingcell","NOCONN","LTE","FDD",311,480,FB6E41A,503,5230,13,3,3,66FE,-95,-6,-71,17,24  
16:26:34 lte,packet,raw lte1 mbim: wdm >>> recv #0 
16:26:34 lte,packet,raw 07000080 40000000 00000000 01000000 
16:26:34 lte,packet,raw 00000000 a289cc33 bcbb8b4f b6b0133e 
16:26:34 lte,packet,raw c2aae6df 0b000000 14000000 0b000000 
16:26:34 lte,packet,raw 63000000 05000000 02000000 ffffffff 
16:26:36 lte,async,raw lte1: sent AT+QENG="servingcell" 
16:26:36 lte,async,raw lte1: rcvd +QENG: "servingcell","NOCONN","LTE","FDD",311,480,FB6E41A,503,5230,13,3,3,66FE,-95,-6,-71,18,24  
16:26:39 lte,async,raw lte1: sent AT+QENG="servingcell" 
16:26:39 lte,async,raw lte1: rcvd +QENG: "servingcell","NOCONN","LTE","FDD",311,480,FB6E41A,503,5230,13,3,3,66FE,-95,-6,-71,18,24  
16:26:42 lte,async,raw lte1: sent AT+QENG="servingcell" 
16:26:42 lte,async,raw lte1: rcvd +QENG: "servingcell","NOCONN","LTE","FDD",311,480,FB6E41A,503,5230,13,3,3,66FE,-95,-6,-71,17,24 
16:26:45 lte,async,raw lte1: sent AT+QENG="servingcell" 
16:26:45 lte,async,raw lte1: rcvd +QENG: "servingcell","NOCONN","LTE","FDD",311,480,FB6E41A,503,5230,13,3,3,66FE,-95,-6,-71,17,24 
16:26:48 lte,async,raw lte1: sent AT+QENG="servingcell" 
16:26:48 lte,async,raw lte1: rcvd +QENG: "servingcell","NOCONN","LTE","FDD",311,480,FB6E41A,503,5230,13,3,3,66FE,-95,-6,-71,18,24 
16:26:51 lte,async,raw lte1: sent AT+QENG="servingcell" 
16:26:51 lte,async,raw lte1: rcvd +QENG: "servingcell","NOCONN","LTE","FDD",311,480,FB6E41A,503,5230,13,3,3,66FE,-95,-6,-71,16,- 
16:26:54 lte,async,raw lte1: sent AT+QENG="servingcell" 
16:26:54 lte,async,raw lte1: rcvd +QENG: "servingcell","NOCONN","LTE","FDD",311,480,FB6E41A,503,5230,13,3,3,66FE,-95,-6,-71,16,- 
16:26:57 lte,async,raw lte1: sent AT+QENG="servingcell" 
16:26:57 lte,async,raw lte1: rcvd +QENG: "servingcell","NOCONN","LTE","FDD",311,480,FB6E41A,503,5230,13,3,3,66FE,-95,-6,-72,16,- 
16:27:00 lte,async,raw lte1: sent AT+QENG="servingcell" 
16:27:00 lte,async,raw lte1: rcvd +QENG: "servingcell","NOCONN","LTE","FDD",311,480,FB6E41A,503,5230,13,3,3,66FE,-95,-6,-72,16,- 
16:27:03 lte,async,raw lte1: sent AT+QENG="servingcell" 
16:27:03 lte,async,raw lte1: rcvd +QENG: "servingcell","NOCONN","LTE","FDD",311,480,FB6E41A,503,5230,13,3,3,66FE,-95,-6,-72,16,- 
16:27:06 lte,async,raw lte1: sent AT+QENG="servingcell" 
16:27:06 lte,async,raw lte1: rcvd +QENG: "servingcell","NOCONN","LTE","FDD",311,480,FB6E41A,503,5230,13,3,3,66FE,-95,-6,-71,16,- 
16:27:09 lte,async,raw lte1: sent AT+QENG="servingcell" 
16:27:09 lte,async,raw lte1: rcvd +QENG: "servingcell","NOCONN","LTE","FDD",311,480,FB6E41A,503,5230,13,3,3,66FE,-95,-6,-72,17,- 
16:27:12 lte,async,raw lte1: sent AT+QENG="servingcell" 
16:27:12 lte,async,raw lte1: rcvd +QENG: "servingcell","NOCONN","LTE","FDD",311,480,FB6E41A,503,5230,13,3,3,66FE,-95,-6,-72,16,- 
16:27:15 lte,async,raw lte1: sent AT+QENG="servingcell" 
16:27:15 lte,async,raw lte1: rcvd +QENG: "servingcell","NOCONN","LTE","FDD",311,480,FB6E41A,503,5230,13,3,3,66FE,-94,-6,-71,17,- 
16:27:18 lte,async,raw lte1: sent AT+QENG="servingcell" 
16:27:18 lte,async,raw lte1: rcvd +QENG: "servingcell","NOCONN","LTE","FDD",311,480,FB6E41A,503,5230,13,3,3,66FE,-95,-6,-72,17,-  
16:27:21 lte,async,raw lte1: sent AT+QENG="servingcell" 
16:27:21 lte,async,raw lte1: rcvd +QENG: "servingcell","NOCONN","LTE","FDD",311,480,FB6E41A,503,5230,13,3,3,66FE,-95,-6,-71,16,- 
16:27:24 lte,async,raw lte1: sent AT+QENG="servingcell" 
16:27:24 lte,async,raw lte1: rcvd +QENG: "servingcell","NOCONN","LTE","FDD",311,480,FB6E41A,503,5230,13,3,3,66FE,-96,-5,-72,17,23 
16:27:27 lte,async,raw lte1: sent AT+QENG="servingcell" 
16:27:27 lte,async,raw lte1: rcvd +QENG: "servingcell","NOCONN","LTE","FDD",311,480,FB6E41A,503,5230,13,3,3,66FE,-95,-6,-71,17,24 
16:27:30 lte,async,raw lte1: sent AT+QENG="servingcell" 
16:27:30 lte,async,raw lte1: rcvd +QENG: "servingcell","NOCONN","LTE","FDD",311,480,FB6E41A,503,5230,13,3,3,66FE,-95,-6,-71,17,24 
16:27:33 lte,async,raw lte1: sent AT+QENG="servingcell" 
16:27:33 lte,async,raw lte1: rcvd +QENG: "servingcell","NOCONN","LTE","FDD",311,480,FB6E41A,503,5230,13,3,3,66FE,-95,-6,-72,17,24 
16:27:36 lte,async,raw lte1: sent AT+QENG="servingcell" 
16:27:36 lte,async,raw lte1: rcvd +QENG: "servingcell","NOCONN","LTE","FDD",311,480,FB6E41A,503,5230,13,3,3,66FE,-95,-7,-70,17,- 
16:27:39 lte,async,raw lte1: sent AT+QENG="servingcell" 
16:27:39 lte,async,raw lte1: rcvd +QENG: "servingcell","NOCONN","LTE","FDD",311,480,FB6E41A,503,5230,13,3,3,66FE,-95,-7,-70,16,- 
16:27:42 lte,async,raw lte1: sent AT+QENG="servingcell" 
16:27:42 lte,async,raw lte1: rcvd +QENG: "servingcell","NOCONN","LTE","FDD",311,480,FB6E41A,503,5230,13,3,3,66FE,-95,-7,-71,16,- 
16:27:45 lte,async,raw lte1: sent AT+QENG="servingcell" 
16:27:45 lte,async,raw lte1: rcvd +QENG: "servingcell","NOCONN","LTE","FDD",311,480,FB6E41A,503,5230,13,3,3,66FE,-95,-7,-70,16,- 
16:27:48 lte,async,raw lte1: sent AT+QENG="servingcell" 
16:27:48 lte,async,raw lte1: rcvd +QENG: "servingcell","NOCONN","LTE","FDD",311,480,FB6E41A,503,5230,13,3,3,66FE,-95,-6,-72,17,24 
16:27:51 lte,async,raw lte1: sent AT+QENG="servingcell" 
16:27:51 lte,async,raw lte1: rcvd +QENG: "servingcell","NOCONN","LTE","FDD",311,480,FB6E41A,503,5230,13,3,3,66FE,-95,-7,-70,15,- 
16:27:54 lte,async,raw lte1: sent AT+QENG="servingcell" 
16:27:54 lte,async,raw lte1: rcvd +QENG: "servingcell","NOCONN","LTE","FDD",311,480,FB6E41A,503,5230,13,3,3,66FE,-95,-7,-70,16,- 
16:27:57 lte,async,raw lte1: sent AT+QENG="servingcell" 
16:27:57 lte,async,raw lte1: rcvd +QENG: "servingcell","NOCONN","LTE","FDD",311,480,FB6E41A,503,5230,13,3,3,66FE,-95,-7,-70,16,- 
16:27:58 async,ppp,info ppp-out1: connecting... 
16:27:58 async,ppp,info ppp-out1: terminating... - could not acquire serial port 
16:27:58 async,ppp,info ppp-out1: disconnected 
16:28:00 lte,async,raw lte1: sent AT+QENG="servingcell" 
16:28:00 lte,async,raw lte1: rcvd +QENG: "servingcell","NOCONN","LTE","FDD",311,480,FB6E41A,503,5230,13,3,3,66FE,-95,-7,-70,15,- 
16:28:01 system,info,account user admin logged in via local 
16:28:03 lte,async,raw lte1: sent AT+QENG="servingcell" 
16:28:03 lte,async,raw lte1: rcvd +QENG: "servingcell","NOCONN","LTE","FDD",311,480,FB6E41A,503,5230,13,3,3,66FE,-95,-7,-70,16,-

JardinEspanol · Sat Mar 06, 2021 9:11 pm

Test the modem + RouterOS combo in ECM mode (AT+QCFG="usbnet",1).

lpr600 · Sun Mar 07, 2021 2:05 pm

Test the modem + RouterOS combo in ECM mode (AT+QCFG="usbnet",1).

Seems to be the same result:

06:56:34 lte,async lte1: sent AT+QCFG="usbnet",1 
06:56:34 lte,async lte1: rcvd OK 
06:56:35 interface,info lte1 link down 
06:56:35 lte,debug lte1 mbim: <<< close 
06:56:35 lte,packet,raw lte1 mbim: wdm <<< send #12 
06:56:35 lte,packet,raw 02000000 0c000000 0c000000 
06:56:35 lte,info lte1 mbim: error: wdm send failed: 19

Then:

07:02:07 lte,async,raw lte1: sent AT+QENG="servingcell" 
07:02:07 lte,async,raw lte1: rcvd +QENG: "servingcell","NOCONN","LTE","FDD",311,480,FB6E41A,503,5230,13,3,3,66FE,-96,-6,-72,16,- 
07:02:07 lte,async,raw lte1: sent AT+CSQ 
07:02:07 lte,async,raw lte1: rcvd +CSQ: 20,99 
07:02:10 lte,async,raw lte1: sent AT+QENG="servingcell" 
07:02:10 lte,async,raw lte1: rcvd +QENG: "servingcell","NOCONN","LTE","FDD",311,480,FB6E41A,503,5230,13,3,3,66FE,-97,-6,-72,16,- 
07:02:10 lte,async,raw lte1: sent AT+CSQ 
07:02:10 lte,async,raw lte1: rcvd +CSQ: 20,99 
07:02:13 lte,async,raw lte1: sent AT+QENG="servingcell" 
07:02:13 lte,async,raw lte1: rcvd +QENG: "servingcell","NOCONN","LTE","FDD",311,480,FB6E41A,503,5230,13,3,3,66FE,-96,-7,-72,16,-

JardinEspanol · Sun Mar 07, 2021 6:27 pm

Did you reboot? I have noticed after making changes, RouterOS requires reboot to make many things to work. I
If reboot does not fix your issue, reset config and do a setup from scratch.
If that does not work, downgrade to 6.48.1 and setup from scratch.

I have R11e-LTE6, EP06-A and EG25 working in ECM mode on 6.48.1 with AT&T on RouterOS 6.48.1. Modems R11e-LTE6 and EP06-A also worked with Visible (Verizon subsidiary). I have not tested EG25 with Visible yet.

SiB · Mon Mar 08, 2021 10:35 am

After
AT+QCFG="usbnet",1 | AT+QCFG=\"usbnet\",1
we must always do a AT#REBOOT | system routerboard usb power-reset | system reboot
to activate a new way of using lte module.

Your logs show still MBIM

SXT w/ EP06-AF - No Such Data Channel

SXT w/ EP06-AF - No Such Data Channel

Re: SXT w/ EP06-AF - No Such Data Channel

Re: SXT w/ EP06-AF - No Such Data Channel

Re: SXT w/ EP06-AF - No Such Data Channel

Re: SXT w/ EP06-AF - No Such Data Channel

Re: SXT w/ EP06-AF - No Such Data Channel

Re: SXT w/ EP06-AF - No Such Data Channel

Re: SXT w/ EP06-AF - No Such Data Channel

Re: SXT w/ EP06-AF - No Such Data Channel

Re: SXT w/ EP06-AF - No Such Data Channel

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