# Problem with data connection servie **URL:** \ **Category:** Uncategorized\ **Created:** [April 1, 2022, 8:01am UTC](https://forum.legato.io/t/problem-with-data-connection-servie/6165 "2022-04-01T08:01:51Z")\ **Posts on this page:** 20\ **Page:** 1
**Author:** ![Reinhard](https://avatars.discourse-cdn.com/v4/letter/r/a9adbd/32.png) [@Reinhard](https://forum.legato.io/u/Reinhard)\ **Post date:** [April 1, 2022, 8:01am UTC](https://forum.legato.io/t/problem-with-data-connection-servie/6165/1 "2022-04-01T08:01:51Z")
Hi all, i have kind of a weird problem, I am using the DataConnection Service in my App. This is how i am initiating the data connection: static void initDataConnection(void) { // Add connection changed hanlder le\_data\_AddConnectionStateHandler(DcsStateHandler, NULL); ``` // User cellulat by default LE_ASSERT(LE_OK == le_data_SetTechnologyRank(1, LE_DATA_CELLULAR)); //Request Data Connaction RequestRef = le_data_Request(); ``` } Sometime it seems to work and sometimes i have to restart the App/module multiple times to be able to connect to cellular. I have used multiple sims and provider but the Problem persists. Also the APN is set correctly. Here are the Logs: Jan 6 02:05:10 swi-mdm9x28-wp user.err Legato: =ERR= | dcsDaemon[1176]/dcs T=main | dcs.c le\_dcs\_GetReference() 216 | Failed to find channel with name 1 of technology 2 Jan 6 02:05:10 swi-mdm9x28-wp user.err Legato: =ERR= | dcsDaemon[1176]/dcsDaemon T=main | dcsTechRank.c dcsTechRank\_SelectDataChannel() 216 | Failed to select cellular profile index 1 due to invalid channel reference Jan 6 02:05:10 swi-mdm9x28-wp user.err Legato: =ERR= | dcsDaemon[1176]/dcsDaemon T=main | dcsServer.c TryStartTechSession() 1057 | Failed to pick technology 1 to start a data connection Jan 6 02:05:10 swi-mdm9x28-wp user.info Legato: INFO | dcsDaemon[1176]/dcsDaemon T=main | dcsServer.c UpdateTechnologyStatus() 1040 | Technology retry to connect will happen after 4 sec Jan 6 02:05:10 swi-mdm9x28-wp user.err Legato: =ERR= | modemDaemon[1206]/swiQmi T=main | swiQmi.c swiQmi\_CheckResponse() 799 | Sending QMI\_NAS\_GET\_NETWORK\_TIME\_RESP\_MSG\_V01 failed: rc=0 (), resp.result=1.[0x01], resp.error=74.[0x4a] Jan 6 02:05:10 swi-mdm9x28-wp user.info Legato: INFO | modemDaemon[1206]/modemDaemon T=main | le\_mrc.c RetrySyncNetworkTimeHandler() 1809 | Re-try: Unable to get network time: result -6 Jan 6 02:05:10 swi-mdm9x28-wp user.info Legato: INFO | modemDaemon[1206]/modemDaemon T=main | le\_sim.c EventTimerHandler() 1262 | Disabling last ICCID change forwarding Jan 6 02:05:10 swi-mdm9x28-wp user.info Legato: INFO | CLV2[1262]/CLV2Component T=CLV2\_MAIN | CLV2.c digitalWrite() 261 | Writing to GPIO: Action: HEARTBEAT, Value: 1 Jan 6 02:05:10 swi-mdm9x28-wp user.warn kernel: [32.773337] QTI:USB tethered modem SMD port opened Jan 6 02:05:11 swi-mdm9x28-wp user.info Legato: INFO | dcsInternal[1177]/dcsInternal T=main | dcsInternal.c \_dcsInternal\_COMPONENT\_INIT() 64 | Initializing data channels Jan 6 02:05:11 swi-mdm9x28-wp user.info Legato: INFO | dcsDaemon[1176]/dcs T=main | dcs.c le\_dcs\_GetChannels() 774 | DCS’ first channel list query to initialize channel list Jan 6 02:05:11 swi-mdm9x28-wp user.info Legato: INFO | dcsDaemon[1176]/dcs T=main | dcs.c DcsInitInternalSession() 747 | DCS internal session reference set to 0x7f5aa928 Jan 6 02:05:11 swi-mdm9x28-wp user.warn Legato: -WRN- | dcsInternal[1177]/framework T=main | fdMonitor.c le\_fdMonitor\_Create() 449 | FD Monitor object name ‘dcsInternal.watchdogChain.le\_wdog’ truncated to ‘dcsInternal.watchdogChain.le\_wd’. Jan 6 02:05:11 swi-mdm9x28-wp user.warn Legato: -WRN- | dcsDaemon[1176]/dcsWifi T=main | dcsWifi.c le\_dcsWifi\_GetChannelList() 893 | Wifi not available Jan 6 02:05:11 swi-mdm9x28-wp user.warn Legato: -WRN- | dcsDaemon[1176]/dcs T=main | dcsTech.c le\_dcsTech\_GetChannelList() 237 | Failed to trigger channel list collection for technology 1; error: -18 Jan 6 02:05:11 swi-mdm9x28-wp user.warn Legato: -WRN- | dcsDaemon[1176]/dcs T=main | dcs.c le\_dcs\_GetChannelList() 811 | Failed to trigger a query for available channels of technology 1, error: -18 Jan 6 02:05:11 swi-mdm9x28-wp user.info Legato: INFO | modemDaemon[1206]/modemDaemon T=main | le\_mdc.c le\_mdc\_GetProfileList() 2986 | le\_mdc\_GetProfileList: profile list size given 36 Jan 6 02:05:11 swi-mdm9x28-wp user.info Legato: INFO | modemDaemon[1206]/le\_pa T=main | pa\_mdc\_qmi.c pa\_mdc\_GetProfileList() 4597 | # of cellular profiles returned: 3 Jan 6 02:05:11 swi-mdm9x28-wp user.info Legato: INFO | modemDaemon[1206]/le\_pa T=main | pa\_mdc\_qmi.c pa\_mdc\_GetProfileList() 4605 | Cellular profile retrieved index 1, type 0, name Jan 6 02:05:11 swi-mdm9x28-wp user.info Legato: INFO | modemDaemon[1206]/le\_pa T=main | pa\_mdc\_qmi.c pa\_mdc\_GetProfileList() 4605 | Cellular profile retrieved index 2, type 0, name Jan 6 02:05:11 swi-mdm9x28-wp user.info Legato: INFO | modemDaemon[1206]/le\_pa T=main | pa\_mdc\_qmi.c pa\_mdc\_GetProfileList() 4605 | Cellular profile retrieved index 3, type 0, name Jan 6 02:05:11 swi-mdm9x28-wp user.info Legato: INFO | dcsDaemon[1176]/dcsCellular T=main | dcsCellular.c DcsCellularAddConnEventHandler() 561 | Succeeded adding connection event handler for connection 1 Jan 6 02:05:11 swi-mdm9x28-wp user.info Legato: INFO | dcsDaemon[1176]/dcsCellular T=main | dcsCellular.c DcsCellularAddConnEventHandler() 561 | Succeeded adding connection event handler for connection 2 Jan 6 02:05:11 swi-mdm9x28-wp user.info Legato: INFO | dcsDaemon[1176]/dcsCellular T=main | dcsCellular.c DcsCellularAddConnEventHandler() 561 | Succeeded adding connection event handler for connection 3 Jan 6 02:05:11 swi-mdm9x28-wp user.info Legato: INFO | dcsDaemon[1176]/dcs T=main | dcsTech.c le\_dcsTech\_CollectChannelQueryResults() 702 | Query channel list results collected from technology 2, retcode 0, list size 3 Jan 6 02:05:11 swi-mdm9x28-wp user.info Legato: INFO | dcsDaemon[1176]/dcs T=main | dcsTech.c le\_dcsTech\_CollectChannelQueryResults() 702 | Query channel list results collected from technology 3, retcode 0, list size 1 Jan 6 02:05:11 swi-mdm9x28-wp user.info Legato: INFO | dcsDaemon[1176]/dcs T=main | dcsTech.c DcsTechPostChannelList() 681 | Posting collected channel list to apps of size 4 Jan 6 02:05:11 swi-mdm9x28-wp user.info Legato: INFO | dcsInternal[1177]/dcsInternal T=main | dcsInternal.c dcsInternalChannelQueryHandler() 49 | Internal list of data channels in le\_dcs initialized Jan 6 02:05:11 swi-mdm9x28-wp user.err Legato: =ERR= | modemDaemon[1206]/swiQmi T=main | swiQmi.c swiQmi\_CheckResponse() 799 | Sending QMI\_NAS\_GET\_NETWORK\_TIME\_RESP\_MSG\_V01 failed: rc=0 (), resp.result=1.[0x01], resp.error=74.[0x4a] Jan 6 02:05:11 swi-mdm9x28-wp user.info Legato: INFO | modemDaemon[1206]/modemDaemon T=main | le\_mrc.c RetrySyncNetworkTimeHandler() 1809 | Re-try: Unable to get network time: result -6 Jan 6 02:05:12 swi-mdm9x28-wp user.err Legato: =ERR= | modemDaemon[1206]/swiQmi T=main | swiQmi.c swiQmi\_CheckResponse() 799 | Sending QMI\_NAS\_GET\_NETWORK\_TIME\_RESP\_MSG\_V01 failed: rc=0 (), resp.result=1.[0x01], resp.error=74.[0x4a] Jan 6 02:05:12 swi-mdm9x28-wp user.info Legato: INFO | modemDaemon[1206]/modemDaemon T=main | le\_mrc.c RetrySyncNetworkTimeHandler() 1809 | Re-try: Unable to get network time: result -6 Jan 6 02:05:13 swi-mdm9x28-wp user.err Legato: =ERR= | modemDaemon[1206]/swiQmi T=main | swiQmi.c swiQmi\_CheckResponse() 799 | Sending QMI\_NAS\_GET\_NETWORK\_TIME\_RESP\_MSG\_V01 failed: rc=0 (), resp.result=1.[0x01], resp.error=74.[0x4a] Jan 6 02:05:13 swi-mdm9x28-wp user.info Legato: INFO | modemDaemon[1206]/modemDaemon T=main | le\_mrc.c RetrySyncNetworkTimeHandler() 1809 | Re-try: Unable to get network time: result -6 Jan 6 02:05:14 swi-mdm9x28-wp user.info Legato: INFO | dcsDaemon[1176]/dcsDaemon T=main | dcsTechRank.c dcsTechRank\_SelectDataChannel() 220 | Selected channel name 1 Jan 6 02:05:14 swi-mdm9x28-wp user.info Legato: INFO | dcsDaemon[1176]/dcs T=main | dcs.c le\_dcs\_AddEventHandler() 635 | Adding channel handler for channel 1 of technology cellular Jan 6 02:05:14 swi-mdm9x28-wp user.info Legato: INFO | dcsDaemon[1176]/dcs T=main | dcs.c le\_dcs\_AddEventHandler() 675 | Event handler with reference 0xd79 and event ID 0xbfd added Jan 6 02:05:14 swi-mdm9x28-wp user.info Legato: INFO | dcsDaemon[1176]/dcs T=main | dcs.c le\_dcs\_Start() 421 | Starting channel 1 of technology cellular by app session with reference 0x7f5aa928 Jan 6 02:05:14 swi-mdm9x28-wp user.info Legato: INFO | dcsDaemon[1176]/dcs T=main | dcs.c le\_dcs\_Start() 478 | Initiating technology to start channel 1 for app session 0x7f5aa928, request reference 0x2cf Jan 6 02:05:14 swi-mdm9x28-wp user.info Legato: INFO | dcsDaemon[1176]/dcsDaemon T=main | dcsServer.c TryStartTechSession() 1105 | Successfully initiated data channel 1 of technology 1 Jan 6 02:05:14 swi-mdm9x28-wp user.info Legato: INFO | dcsDaemon[1176]/dcs T=main | dcsTech.c le\_dcsTech\_Start() 338 | Request to start channel 1 of technology cellular Jan 6 02:05:14 swi-mdm9x28-wp user.err Legato: =ERR= | modemDaemon[1206]/swiQmi T=main | swiQmi.c swiQmi\_CheckResponse() 799 | Sending QMI\_WDS\_START\_NETWORK\_INTERFACE\_REQ\_V01 failed: rc=0 (), resp.result=1.[0x01], resp.error=14.[0x0e] Jan 6 02:05:14 swi-mdm9x28-wp user.err Legato: =ERR= | modemDaemon[1206]/le\_pa T=main | pa\_mdc\_qmi.c StartSession() 1978 | Data connection failure Call End provided 1, Code 1012 Jan 6 02:05:14 swi-mdm9x28-wp user.err Legato: =ERR= | modemDaemon[1206]/le\_pa T=main | pa\_mdc\_qmi.c StartSession() 1989 | Data connection failure Verbose Call End provided Type 6, Verbose 8 Jan 6 02:05:14 swi-mdm9x28-wp user.err Legato: =ERR= | modemDaemon[1206]/modemDaemon T=main | le\_mdc.c le\_mdc\_StartSession() 1270 | Get Async Connection failure 1, 1012, 6, 8 Jan 6 02:05:14 swi-mdm9x28-wp user.err Legato: =ERR= | dcsDaemon[1176]/dcsCellular T=main | dcsCellular.c le\_dcsCellular\_Start() 1089 | Failed to start cellular connection 1; error: -6 Thanks in advance! ---
**Author:** ![jyijyi](https://sea1.discourse-cdn.com/flex019/user_avatar/forum.legato.io/jyijyi/32/822_2.png) [@jyijyi](https://forum.legato.io/u/jyijyi)\ **Post date:** [April 1, 2022, 8:08am UTC](https://forum.legato.io/t/problem-with-data-connection-servie/6165/2 "2022-04-01T08:08:01Z")
do you see any problem with “cm data connect &” or the sample app modemDemo? > **[legato-af/apps/sample/modemDemo at master · legatoproject/legato-af](https://github.com/legatoproject/legato-af/tree/master/apps/sample/modemDemo)** > > master/apps/sample/modemDemo ---
**Author:** ![Reinhard](https://avatars.discourse-cdn.com/v4/letter/r/a9adbd/32.png) [@Reinhard](https://forum.legato.io/u/Reinhard)\ **Post date:** [April 1, 2022, 8:23am UTC](https://forum.legato.io/t/problem-with-data-connection-servie/6165/3 "2022-04-01T08:23:02Z")
“cm data connect &” give the following output: ![image](https://us1.discourse-cdn.com/flex019/uploads/legato1/original/2X/c/c0385a11c65449bf03c4cbd7aedf2165f3ea6d8c.png) After Running the modemDemo it just seems to start the app but seem to hang somewhere: it only outputs the following line: Jan 6 00:28:55 swi-mdm9x28-wp user.info Legato: INFO | modemDemo[5081]/demoComponent T=main | demo.c \_demoComponent\_COMPONENT\_INIT() 1061 | Running modemDemo ---
**Author:** ![jyijyi](https://sea1.discourse-cdn.com/flex019/user_avatar/forum.legato.io/jyijyi/32/822_2.png) [@jyijyi](https://forum.legato.io/u/jyijyi)\ **Post date:** [April 1, 2022, 8:26am UTC](https://forum.legato.io/t/problem-with-data-connection-servie/6165/4 "2022-04-01T08:26:26Z")
how is the following? ```auto cm radio cm data ``` For using the modemDemo, you need to type `app runProc modemDemo send --exe=send -- 1234567 "Online"` All result is in /legato/systems/current/appsWriteable/modemDemo/smsChat.txt ---
**Author:** ![Reinhard](https://avatars.discourse-cdn.com/v4/letter/r/a9adbd/32.png) [@Reinhard](https://forum.legato.io/u/Reinhard)\ **Post date:** [April 1, 2022, 8:40am UTC](https://forum.legato.io/t/problem-with-data-connection-servie/6165/5 "2022-04-01T08:40:10Z")
cm data: ![image](https://us1.discourse-cdn.com/flex019/uploads/legato1/original/2X/1/1ccccda8f8ddd9b680b04dbb12d23acbbf052fb2.png) cm radio: ![image](https://us1.discourse-cdn.com/flex019/uploads/legato1/original/2X/b/b5a87942cb826120944e98c2d69f8e17f598565b.png) ![image](https://us1.discourse-cdn.com/flex019/uploads/legato1/original/2X/2/2c78c2cfe19b711024072c0fb7a3fb0395888600.png) After running the command you sent it seems to be able to connect to cellular, I also rebooted a few times and now it seems to be able to connect every single time… Do you have an idea what could be wrong with my app? I have no idea what could be the problem ---
**Author:** ![jyijyi](https://sea1.discourse-cdn.com/flex019/user_avatar/forum.legato.io/jyijyi/32/822_2.png) [@jyijyi](https://forum.legato.io/u/jyijyi)\ **Post date:** [April 1, 2022, 8:57am UTC](https://forum.legato.io/t/problem-with-data-connection-servie/6165/6 "2022-04-01T08:57:09Z")
i have no idea, but the easiest way is to port the modemdemo app to your app (not sure if it relates to weak signal in your environment) ---
**Author:** ![Reinhard](https://avatars.discourse-cdn.com/v4/letter/r/a9adbd/32.png) [@Reinhard](https://forum.legato.io/u/Reinhard)\ **Post date:** [April 1, 2022, 9:05am UTC](https://forum.legato.io/t/problem-with-data-connection-servie/6165/7 "2022-04-01T09:05:19Z")
The thing is basically that is what i did, i am executing the exact same things as the modemDemo app. The only thing i didn’t do is implement these handlers: ![image](https://us1.discourse-cdn.com/flex019/uploads/legato1/original/2X/a/a6a230e62cb5892f8ae0e5f4f61f518b79d4fdb0.png) But i looked at the code of theses and the shouldn’t affect the ability to connect to cellular… ---
**Author:** ![jyijyi](https://sea1.discourse-cdn.com/flex019/user_avatar/forum.legato.io/jyijyi/32/822_2.png) [@jyijyi](https://forum.legato.io/u/jyijyi)\ **Post date:** [April 1, 2022, 9:11am UTC](https://forum.legato.io/t/problem-with-data-connection-servie/6165/8 "2022-04-01T09:11:19Z")
then maybe you port your code to the modemDemo app which has proven to be working on your side ---
**Author:** ![Reinhard](https://avatars.discourse-cdn.com/v4/letter/r/a9adbd/32.png) [@Reinhard](https://forum.legato.io/u/Reinhard)\ **Post date:** [April 1, 2022, 9:43am UTC](https://forum.legato.io/t/problem-with-data-connection-servie/6165/9 "2022-04-01T09:43:08Z")
Retried the modemDemo app, now it isn’t wiorking anymore… Before i just seemed to get lucky as it is working 30% of the time… ![image](https://us1.discourse-cdn.com/flex019/uploads/legato1/original/2X/2/28891adf1e8bd5f1ee24633eb789f2901ef2e989.png) ---
**Author:** ![jyijyi](https://sea1.discourse-cdn.com/flex019/user_avatar/forum.legato.io/jyijyi/32/822_2.png) [@jyijyi](https://forum.legato.io/u/jyijyi)\ **Post date:** [April 1, 2022, 12:13pm UTC](https://forum.legato.io/t/problem-with-data-connection-servie/6165/10 "2022-04-01T12:13:41Z")
have you checked if “cm radio” or AT!GSTATUS? is having weak signal? Are you using FW R16? ---
**Author:** ![Reinhard](https://avatars.discourse-cdn.com/v4/letter/r/a9adbd/32.png) [@Reinhard](https://forum.legato.io/u/Reinhard)\ **Post date:** [April 1, 2022, 1:07pm UTC](https://forum.legato.io/t/problem-with-data-connection-servie/6165/11 "2022-04-01T13:07:41Z")
I also already treid at a different location with signal strength 4/5 & 5/5. I am using FW Release 16 & Legato version 19.11.2 ---
**Author:** ![jyijyi](https://sea1.discourse-cdn.com/flex019/user_avatar/forum.legato.io/jyijyi/32/822_2.png) [@jyijyi](https://forum.legato.io/u/jyijyi)\ **Post date:** [April 1, 2022, 1:14pm UTC](https://forum.legato.io/t/problem-with-data-connection-servie/6165/12 "2022-04-01T13:14:27Z")
are you using mangoh board? Not sure if this is hardware issue causing the instability ---
**Author:** ![Reinhard](https://avatars.discourse-cdn.com/v4/letter/r/a9adbd/32.png) [@Reinhard](https://forum.legato.io/u/Reinhard)\ **Post date:** [April 4, 2022, 6:36am UTC](https://forum.legato.io/t/problem-with-data-connection-servie/6165/13 "2022-04-04T06:36:08Z")
Yes i am using a mangOH red board, with a WP7607. I also tried a WP8548 but the Problem seems to persist. ---
**Author:** ![jyijyi](https://sea1.discourse-cdn.com/flex019/user_avatar/forum.legato.io/jyijyi/32/822_2.png) [@jyijyi](https://forum.legato.io/u/jyijyi)\ **Post date:** [April 4, 2022, 6:40am UTC](https://forum.legato.io/t/problem-with-data-connection-servie/6165/14 "2022-04-04T06:40:17Z")
do you find problem with AT!SCACT to share data to host platform? > **[Example on establishing data connection by AT!SCACT via MBPL R20 driver](https://forum.sierrawireless.com/t/example-on-establishing-data-connection-by-at-scact-via-mbpl-r20-driver/24130)** > > Here is an example to establish data connection by AT!SCACT via MBPL R20 driver: Module: WP7609 FW: R13 MBPL: R20 PC Environment: Ubuntu 18 need to install the MBPL R20 driver for qmi\_wwan and qcserial (MBPL\_Drivers\_USB\_R20\_ENG1-src.tar.gz)... This can isolate if this is legato problem only… ---
**Author:** ![Reinhard](https://avatars.discourse-cdn.com/v4/letter/r/a9adbd/32.png) [@Reinhard](https://forum.legato.io/u/Reinhard)\ **Post date:** [April 4, 2022, 6:55am UTC](https://forum.legato.io/t/problem-with-data-connection-servie/6165/15 "2022-04-04T06:55:07Z")
AT!SCACT returns “OK” ![image](https://us1.discourse-cdn.com/flex019/uploads/legato1/original/2X/7/73a5c1a2d6dccce26e98ee6fb62ea525b5a84c0e.png) For reference, i am now at an location with better signal strength: ![image](https://us1.discourse-cdn.com/flex019/uploads/legato1/original/2X/4/43d2a4d7c4a93f4839adf43f53ea1e977a4fa6d1.png) ---
**Author:** ![Reinhard](https://avatars.discourse-cdn.com/v4/letter/r/a9adbd/32.png) [@Reinhard](https://forum.legato.io/u/Reinhard)\ **Post date:** [April 4, 2022, 6:55am UTC](https://forum.legato.io/t/problem-with-data-connection-servie/6165/16 "2022-04-04T06:55:43Z")
It returns OK, but the data connection does not get established 😕 ---
**Author:** ![jyijyi](https://sea1.discourse-cdn.com/flex019/user_avatar/forum.legato.io/jyijyi/32/822_2.png) [@jyijyi](https://forum.legato.io/u/jyijyi)\ **Post date:** [April 4, 2022, 6:56am UTC](https://forum.legato.io/t/problem-with-data-connection-servie/6165/17 "2022-04-04T06:56:42Z")
Do you mean after aT!SCACT, the host platform can get data establishment? ---
**Author:** ![Reinhard](https://avatars.discourse-cdn.com/v4/letter/r/a9adbd/32.png) [@Reinhard](https://forum.legato.io/u/Reinhard)\ **Post date:** [April 4, 2022, 6:59am UTC](https://forum.legato.io/t/problem-with-data-connection-servie/6165/18 "2022-04-04T06:59:04Z")
No sorry. I mean it can not establish connection… The weird thing is the command returns OK. But on the platform itself cm data shows no connection and the ping does not work. ---
**Author:** ![jyijyi](https://sea1.discourse-cdn.com/flex019/user_avatar/forum.legato.io/jyijyi/32/822_2.png) [@jyijyi](https://forum.legato.io/u/jyijyi)\ **Post date:** [April 4, 2022, 7:01am UTC](https://forum.legato.io/t/problem-with-data-connection-servie/6165/19 "2022-04-04T07:01:54Z")
at!SCACT is not for legato to establish data, it is for host platform to establish data channell ---
**Author:** ![Reinhard](https://avatars.discourse-cdn.com/v4/letter/r/a9adbd/32.png) [@Reinhard](https://forum.legato.io/u/Reinhard)\ **Post date:** [April 4, 2022, 7:37am UTC](https://forum.legato.io/t/problem-with-data-connection-servie/6165/20 "2022-04-04T07:37:11Z")
Ah ok, will try that! But i am not sure if i found the Problem, i rechecked the module i was using and it was a 7608 which is for China/India… I now switched to a 7607 (which is for europe) and everything works (for now). But the thing that i can’t understand is why it sometimes works with the 7608 and sometimes it doesn’t. I get that the WP7608 isn’t designed for the region i’m in, but shouldn’t it still be able to somewhat function? Especially when i get 4/5 signal strength? [Next page](https://forum.legato.io/t/problem-with-data-connection-servie/6165.md?page=2)