RE: Linux system cannot use the data connection

2022-07-16 Thread Amol Lad 
Also, one thing I noticed in mmcli-all-log.info. It might not be related to 
your problem though.

MTU from the carrier is 1360 but wwan0 MTU is set to 1500. It must be set to 
the MTU received from the carrier.

-Original Message-
From: Amol Lad  
Sent: Friday, 15 July 2022 6:39 PM
To: Filip Kubicz 
Cc: modemmanager-devel@lists.freedesktop.org; Kamil Sroka 
Subject: RE: Linux system cannot use the data connection

Please try below (skip dns resolution)

wget 
http://193.63.62.31/sites/default/files/publications/civic_renewal_forms.zip

From: Filip Kubicz 
Sent: Friday, 15 July 2022 6:29 PM
To: Amol Lad 
Cc: modemmanager-devel@lists.freedesktop.org; Kamil Sroka 
Subject: Re: Linux system cannot use the data connection

Hi Amol,

# wget http://speedtest.ftp.otenet.gr/files/test10Mb.db
--1970-01-04 01:06:40--  http://speedtest.ftp.otenet.gr/files/test10Mb.db
Resolving speedtest.ftp.otenet.gr... failed: Temporary failure in name 
resolution.
wget: unable to resolve host address 
'speedtest.ftp.otenet.gr'

Filip


On Fri, Jul 15, 2022 at 2:52 PM Amol Lad 
mailto:amol@4rf.com>> wrote:
Please also try downloading a test file as below and see the result. Does it 
download any file at all?

wget http://speedtest.ftp.otenet.gr/files/test10Mb.db



From: Filip Kubicz mailto:filip.kub...@tier.app>>
Sent: Friday, 15 July 2022 5:28 PM
To: Amol Lad mailto:amol@4rf.com>>
Cc: 
modemmanager-devel@lists.freedesktop.org;
 Kamil Sroka mailto:kamil.sr...@tier.app>>
Subject: Re: Linux system cannot use the data connection

Hi Amol, thanks for the answer. I checked that the devices are not hitting the 
SIM data limit.
Moreover, as I mentioned there is some small RX/TX occurring for the device 
from the operator point of view, but the "ping 8.8.8.8 -I wwan0" does not work.

Filip


On Fri, Jul 15, 2022 at 1:28 PM Amol Lad 
mailto:amol@4rf.com>> wrote:
I generally run into similar situation when my SIM card runs out of money. Do 
you want to try topping-up SIM card and see if ping is successful?

Amol

From: ModemManager-devel 
mailto:modemmanager-devel-boun...@lists.freedesktop.org>>
 On Behalf Of Filip Kubicz
Sent: Friday, 15 July 2022 4:14 PM
To: 
modemmanager-devel@lists.freedesktop.org
Cc: Kamil Sroka mailto:kamil.sr...@tier.app>>
Subject: Linux system cannot use the data connection

Hi!

I'm using ModemManager 1.18.6 with Quectel EG21-G modem and Twilio SuperSIM.

This setup works ok on multiple devices.
However, on a few devices, I see following situation:

• Modem registered to operator network (e.g. Vodafone UK)

• Modem reports connected state

• wwan0 interface has IPv4 address

• Network provider sees no issues

• in Network provider console you can see the device exchanges a few hundred kB 
of data every hour

• but ping doesn’t work

• sending data fails
This looks strange, as if ModemManager was not aware of the data session that 
is setup, or Linux system not being able to use it.

The simplified flow of using the modem:
- enable modem
- wait until it auto-registers
- create a bearer and connect
- when bearer obtains IP address, configure the network interface

I attached relevant mmcli information from the device (modem, bearer) and debug 
level logs from 2 situations:
- device stable in connected state (but ping fails)
- modem reset - sequence of enable, register, connect -> goes into the same 
state where ping does not work.
I also attached the commands that are used for setting up the network interface 
when a new IP address is obtained.

What should I check, or do you know how to avoid this situation?

Kind regards,
Filip

The information in this email communication (inclusive of attachments) is 
confidential to 4RF Limited and the intended recipient(s). If you are not the 
intended recipient(s), please note that any use, disclosure, distribution or 
copying of this information or any part thereof is strictly prohibited and that 
the author accepts no liability for the consequences of any action taken on the 
basis of the information provided. If you have received this email in error, 
please notify the sender immediately by return email and then delete all 
instances of this email from your system. 4RF Limited will not accept 
responsibility for any consequences associated with the use of this email 
(including, but not limited to, damages sustained as a result of any viruses 
and/or any action or lack of action taken in reliance on it).

RE: Linux system cannot use the data connection

2022-07-16 Thread Amol Lad 
Please also try downloading a test file as below and see the result. Does it 
download any file at all?

wget http://speedtest.ftp.otenet.gr/files/test10Mb.db



From: Filip Kubicz 
Sent: Friday, 15 July 2022 5:28 PM
To: Amol Lad 
Cc: modemmanager-devel@lists.freedesktop.org; Kamil Sroka 
Subject: Re: Linux system cannot use the data connection

Hi Amol, thanks for the answer. I checked that the devices are not hitting the 
SIM data limit.
Moreover, as I mentioned there is some small RX/TX occurring for the device 
from the operator point of view, but the "ping 8.8.8.8 -I wwan0" does not work.

Filip


On Fri, Jul 15, 2022 at 1:28 PM Amol Lad 
mailto:amol@4rf.com>> wrote:
I generally run into similar situation when my SIM card runs out of money. Do 
you want to try topping-up SIM card and see if ping is successful?

Amol

From: ModemManager-devel 
mailto:modemmanager-devel-boun...@lists.freedesktop.org>>
 On Behalf Of Filip Kubicz
Sent: Friday, 15 July 2022 4:14 PM
To: 
modemmanager-devel@lists.freedesktop.org
Cc: Kamil Sroka mailto:kamil.sr...@tier.app>>
Subject: Linux system cannot use the data connection

Hi!

I'm using ModemManager 1.18.6 with Quectel EG21-G modem and Twilio SuperSIM.

This setup works ok on multiple devices.
However, on a few devices, I see following situation:

• Modem registered to operator network (e.g. Vodafone UK)

• Modem reports connected state

• wwan0 interface has IPv4 address

• Network provider sees no issues

• in Network provider console you can see the device exchanges a few hundred 
kB of data every hour

• but ping doesn’t work

• sending data fails
This looks strange, as if ModemManager was not aware of the data session that 
is setup, or Linux system not being able to use it.

The simplified flow of using the modem:
- enable modem
- wait until it auto-registers
- create a bearer and connect
- when bearer obtains IP address, configure the network interface

I attached relevant mmcli information from the device (modem, bearer) and debug 
level logs from 2 situations:
- device stable in connected state (but ping fails)
- modem reset - sequence of enable, register, connect -> goes into the same 
state where ping does not work.
I also attached the commands that are used for setting up the network interface 
when a new IP address is obtained.

What should I check, or do you know how to avoid this situation?

Kind regards,
Filip

The information in this email communication (inclusive of attachments) is 
confidential to 4RF Limited and the intended recipient(s). If you are not the 
intended recipient(s), please note that any use, disclosure, distribution or 
copying of this information or any part thereof is strictly prohibited and that 
the author accepts no liability for the consequences of any action taken on the 
basis of the information provided. If you have received this email in error, 
please notify the sender immediately by return email and then delete all 
instances of this email from your system. 4RF Limited will not accept 
responsibility for any consequences associated with the use of this email 
(including, but not limited to, damages sustained as a result of any viruses 
and/or any action or lack of action taken in reliance on it).

Re: Linux system cannot use the data connection

2022-07-16 Thread Filip Kubicz 
Hi Amol,

# wget http://speedtest.ftp.otenet.gr/files/test10Mb.db
--1970-01-04 01:06:40--  http://speedtest.ftp.otenet.gr/files/test10Mb.db
Resolving speedtest.ftp.otenet.gr... failed: Temporary failure in name
resolution.
wget: unable to resolve host address 'speedtest.ftp.otenet.gr'

Filip


On Fri, Jul 15, 2022 at 2:52 PM Amol Lad  wrote:

> Please also try downloading a test file as below and see the result. Does
> it download any file at all?
>
>
>
> wget http://speedtest.ftp.otenet.gr/files/test10Mb.db
>
>
>
>
>
>
>
> *From:* Filip Kubicz 
> *Sent:* Friday, 15 July 2022 5:28 PM
> *To:* Amol Lad 
> *Cc:* modemmanager-devel@lists.freedesktop.org; Kamil Sroka <
> kamil.sr...@tier.app>
> *Subject:* Re: Linux system cannot use the data connection
>
>
>
> Hi Amol, thanks for the answer. I checked that the devices are not hitting
> the SIM data limit.
> Moreover, as I mentioned there is some small RX/TX occurring for the
> device from the operator point of view, but the "ping 8.8.8.8 -I wwan0"
> does not work.
>
>
> Filip
>
>
>
>
>
> On Fri, Jul 15, 2022 at 1:28 PM Amol Lad  wrote:
>
> I generally run into similar situation when my SIM card runs out of money.
> Do you want to try topping-up SIM card and see if ping is successful?
>
>
>
> Amol
>
>
>
> *From:* ModemManager-devel <
> modemmanager-devel-boun...@lists.freedesktop.org> *On Behalf Of *Filip
> Kubicz
> *Sent:* Friday, 15 July 2022 4:14 PM
> *To:* modemmanager-devel@lists.freedesktop.org
> *Cc:* Kamil Sroka 
> *Subject:* Linux system cannot use the data connection
>
>
>
> Hi!
>
> I'm using ModemManager 1.18.6 with Quectel EG21-G modem and Twilio
> SuperSIM.
>
>
> This setup works ok on multiple devices.
> However, on a few devices, I see following situation:
>
> · Modem registered to operator network (e.g. Vodafone UK)
>
> · Modem reports connected state
>
> · wwan0 interface has IPv4 address
>
> · Network provider sees no issues
>
> · in Network provider console you can see the device exchanges a few
> hundred kB of data every hour
>
> · but ping doesn’t work
>
> · sending data fails
>
> This looks strange, as if ModemManager was not aware of the data session
> that is setup, or Linux system not being able to use it.
>
> The simplified flow of using the modem:
> - enable modem
> - wait until it auto-registers
> - create a bearer and connect
> - when bearer obtains IP address, configure the network interface
>
> I attached relevant mmcli information from the device (modem, bearer) and
> debug level logs from 2 situations:
> - device stable in connected state (but ping fails)
> - modem reset - sequence of enable, register, connect -> goes into the
> same state where ping does not work.
> I also attached the commands that are used for setting up the network
> interface when a new IP address is obtained.
>
> What should I check, or do you know how to avoid this situation?
>
>
> Kind regards,
> Filip
> --
>
> The information in this email communication (inclusive of attachments) is
> confidential to 4RF Limited and the intended recipient(s). If you are not
> the intended recipient(s), please note that any use, disclosure,
> distribution or copying of this information or any part thereof is strictly
> prohibited and that the author accepts no liability for the consequences of
> any action taken on the basis of the information provided. If you have
> received this email in error, please notify the sender immediately by
> return email and then delete all instances of this email from your system.
> 4RF Limited will not accept responsibility for any consequences associated
> with the use of this email (including, but not limited to, damages
> sustained as a result of any viruses and/or any action or lack of action
> taken in reliance on it).
>
>

RE: Linux system cannot use the data connection

2022-07-16 Thread Amol Lad 
Please try below (skip dns resolution)

wget 
http://193.63.62.31/sites/default/files/publications/civic_renewal_forms.zip

From: Filip Kubicz 
Sent: Friday, 15 July 2022 6:29 PM
To: Amol Lad 
Cc: modemmanager-devel@lists.freedesktop.org; Kamil Sroka 
Subject: Re: Linux system cannot use the data connection

Hi Amol,

# wget http://speedtest.ftp.otenet.gr/files/test10Mb.db
--1970-01-04 01:06:40--  http://speedtest.ftp.otenet.gr/files/test10Mb.db
Resolving speedtest.ftp.otenet.gr... failed: Temporary failure in name 
resolution.
wget: unable to resolve host address 
'speedtest.ftp.otenet.gr'

Filip


On Fri, Jul 15, 2022 at 2:52 PM Amol Lad 
mailto:amol@4rf.com>> wrote:
Please also try downloading a test file as below and see the result. Does it 
download any file at all?

wget http://speedtest.ftp.otenet.gr/files/test10Mb.db



From: Filip Kubicz mailto:filip.kub...@tier.app>>
Sent: Friday, 15 July 2022 5:28 PM
To: Amol Lad mailto:amol@4rf.com>>
Cc: 
modemmanager-devel@lists.freedesktop.org;
 Kamil Sroka mailto:kamil.sr...@tier.app>>
Subject: Re: Linux system cannot use the data connection

Hi Amol, thanks for the answer. I checked that the devices are not hitting the 
SIM data limit.
Moreover, as I mentioned there is some small RX/TX occurring for the device 
from the operator point of view, but the "ping 8.8.8.8 -I wwan0" does not work.

Filip


On Fri, Jul 15, 2022 at 1:28 PM Amol Lad 
mailto:amol@4rf.com>> wrote:
I generally run into similar situation when my SIM card runs out of money. Do 
you want to try topping-up SIM card and see if ping is successful?

Amol

From: ModemManager-devel 
mailto:modemmanager-devel-boun...@lists.freedesktop.org>>
 On Behalf Of Filip Kubicz
Sent: Friday, 15 July 2022 4:14 PM
To: 
modemmanager-devel@lists.freedesktop.org
Cc: Kamil Sroka mailto:kamil.sr...@tier.app>>
Subject: Linux system cannot use the data connection

Hi!

I'm using ModemManager 1.18.6 with Quectel EG21-G modem and Twilio SuperSIM.

This setup works ok on multiple devices.
However, on a few devices, I see following situation:

• Modem registered to operator network (e.g. Vodafone UK)

• Modem reports connected state

• wwan0 interface has IPv4 address

• Network provider sees no issues

• in Network provider console you can see the device exchanges a few hundred 
kB of data every hour

• but ping doesn’t work

• sending data fails
This looks strange, as if ModemManager was not aware of the data session that 
is setup, or Linux system not being able to use it.

The simplified flow of using the modem:
- enable modem
- wait until it auto-registers
- create a bearer and connect
- when bearer obtains IP address, configure the network interface

I attached relevant mmcli information from the device (modem, bearer) and debug 
level logs from 2 situations:
- device stable in connected state (but ping fails)
- modem reset - sequence of enable, register, connect -> goes into the same 
state where ping does not work.
I also attached the commands that are used for setting up the network interface 
when a new IP address is obtained.

What should I check, or do you know how to avoid this situation?

Kind regards,
Filip

The information in this email communication (inclusive of attachments) is 
confidential to 4RF Limited and the intended recipient(s). If you are not the 
intended recipient(s), please note that any use, disclosure, distribution or 
copying of this information or any part thereof is strictly prohibited and that 
the author accepts no liability for the consequences of any action taken on the 
basis of the information provided. If you have received this email in error, 
please notify the sender immediately by return email and then delete all 
instances of this email from your system. 4RF Limited will not accept 
responsibility for any consequences associated with the use of this email 
(including, but not limited to, damages sustained as a result of any viruses 
and/or any action or lack of action taken in reliance on it).

Re: Linux system cannot use the data connection

2022-07-16 Thread Filip Kubicz 
I love the example :D
However...

# wget
http://193.63.62.31/sites/default/files/publications/civic_renewal_forms.zip
--1970-01-04 01:19:23--
http://193.63.62.31/sites/default/files/publications/civic_renewal_forms.zip
Connecting to 193.63.62.31:80...
failed: Connection timed out.
Retrying.

--1970-01-04 01:21:36--  (try: 2)
http://193.63.62.31/sites/default/files/publications/civic_renewal_forms.zip
Connecting to 193.63.62.31:80... failed: Connection timed out.
Retrying.

--1970-01-04 01:23:50--  (try: 3)
http://193.63.62.31/sites/default/files/publications/civic_renewal_forms.zip
Connecting to 193.63.62.31:80... failed: Connection timed out.
Retrying.

ModemManager still reports
   |   state: connected
   | power state: on
   | access tech: lte
   |  signal quality: 100% (cached)

Bearer statistics:

  Statistics |   duration: 77790
 |   bytes tx: 3300828
 |   attempts: 1
 | total-duration: 77790
 | total-bytes tx: 3300828

I got the information from operator that:
Super SIM and the network allow only one active application bearer at a
time so the second bearer will be automatically canceled and ModemManager
may get confused.

Are the 2 bearers expected? I think since some version between 1.12 and
1.14 ModemManager shows initial bearer and actual bearer. Correct?
So what could be the real problem in this case? (all logs attached to the
first message)

Kind regards,
Filip


On Fri, Jul 15, 2022 at 3:08 PM Amol Lad  wrote:

> Please try below (skip dns resolution)
>
>
>
> wget
> http://193.63.62.31/sites/default/files/publications/civic_renewal_forms.zip
>
>
>
> *From:* Filip Kubicz 
> *Sent:* Friday, 15 July 2022 6:29 PM
> *To:* Amol Lad 
> *Cc:* modemmanager-devel@lists.freedesktop.org; Kamil Sroka <
> kamil.sr...@tier.app>
> *Subject:* Re: Linux system cannot use the data connection
>
>
>
> Hi Amol,
>
> # wget http://speedtest.ftp.otenet.gr/files/test10Mb.db
> --1970-01-04 01:06:40--  http://speedtest.ftp.otenet.gr/files/test10Mb.db
> Resolving speedtest.ftp.otenet.gr... failed: Temporary failure in name
> resolution.
> wget: unable to resolve host address 'speedtest.ftp.otenet.gr'
>
>
> Filip
>
>
>
>
>
> On Fri, Jul 15, 2022 at 2:52 PM Amol Lad  wrote:
>
> Please also try downloading a test file as below and see the result. Does
> it download any file at all?
>
>
>
> wget http://speedtest.ftp.otenet.gr/files/test10Mb.db
>
>
>
>
>
>
>
> *From:* Filip Kubicz 
> *Sent:* Friday, 15 July 2022 5:28 PM
> *To:* Amol Lad 
> *Cc:* modemmanager-devel@lists.freedesktop.org; Kamil Sroka <
> kamil.sr...@tier.app>
> *Subject:* Re: Linux system cannot use the data connection
>
>
>
> Hi Amol, thanks for the answer. I checked that the devices are not hitting
> the SIM data limit.
> Moreover, as I mentioned there is some small RX/TX occurring for the
> device from the operator point of view, but the "ping 8.8.8.8 -I wwan0"
> does not work.
>
>
> Filip
>
>
>
>
>
> On Fri, Jul 15, 2022 at 1:28 PM Amol Lad  wrote:
>
> I generally run into similar situation when my SIM card runs out of money.
> Do you want to try topping-up SIM card and see if ping is successful?
>
>
>
> Amol
>
>
>
> *From:* ModemManager-devel <
> modemmanager-devel-boun...@lists.freedesktop.org> *On Behalf Of *Filip
> Kubicz
> *Sent:* Friday, 15 July 2022 4:14 PM
> *To:* modemmanager-devel@lists.freedesktop.org
> *Cc:* Kamil Sroka 
> *Subject:* Linux system cannot use the data connection
>
>
>
> Hi!
>
> I'm using ModemManager 1.18.6 with Quectel EG21-G modem and Twilio
> SuperSIM.
>
>
> This setup works ok on multiple devices.
> However, on a few devices, I see following situation:
>
> · Modem registered to operator network (e.g. Vodafone UK)
>
> · Modem reports connected state
>
> · wwan0 interface has IPv4 address
>
> · Network provider sees no issues
>
> · in Network provider console you can see the device exchanges a few
> hundred kB of data every hour
>
> · but ping doesn’t work
>
> · sending data fails
>
> This looks strange, as if ModemManager was not aware of the data session
> that is setup, or Linux system not being able to use it.
>
> The simplified flow of using the modem:
> - enable modem
> - wait until it auto-registers
> - create a bearer and connect
> - when bearer obtains IP address, configure the network interface
>
> I attached relevant mmcli information from the device (modem, bearer) and
> debug level logs from 2 situations:
> - device stable in connected state (but ping fails)
> - modem reset - sequence of enable, register, connect -> goes into the
> same state where ping does not work.
> I also attached the commands that are used for setting up the network
> interface when a new IP address is obtained.
>
> What should I check, or do you know how to avoid this situation?
>
>
> Kind regards,
> Filip
> --
>
> The information in this emai