# EM7565 trouble connecting wit AT SCACT: no internet connection, although attached to mobile network. NetworkManager/ModemManager works fine though? **URL:** \ **Category:** IoT Modules\ **Created:** [February 24, 2025, 5:21pm UTC](https://forum.sierrawireless.com/t/em7565-trouble-connecting-wit-at-scact-no-internet-connection-although-attached-to-mobile-network-networkmanager-modemmanager-works-fine-though/34536 "2025-02-24T17:21:44Z")\ **Posts on this page:** 7\ **Page:** 1
**Author:** ![schustan](https://avatars.discourse-cdn.com/v4/letter/s/58f4c7/32.png) [@schustan](https://forum.sierrawireless.com/u/schustan)\ **Post date:** [February 24, 2025, 5:21pm UTC](https://forum.sierrawireless.com/t/em7565-trouble-connecting-wit-at-scact-no-internet-connection-although-attached-to-mobile-network-networkmanager-modemmanager-works-fine-though/34536/1 "2025-02-24T17:21:44Z")
Hi, I have some issues with my EM7565 control via AT commands. Everything works flawlessly with ModemManager/NetworkManager combination on linux, but I want to run some custom scripts, and thus control it the old-school way. I’m currently trying to connect to the LTE network of Deutsche Telekom (MCC/MNC 262/01), SIM does not have a PIN. The correct APN is “internet.telekom”, works fine in NetworkManager without username or password. Here is what my AT commands and their respones currently look like: ```auto at!selrat=06 OK at+cgdcont? +CGDCONT: 1,"IP","internet.telekom","0.0.0.0",0,0,0,0 OK at+cgdcont=1,"IP","internet.telekom" OK at!scact? !SCACT: 1,0 OK at+cops? +cops: 1,2,"26201",7 OK at+cops=? +cops: (2," "," ","26201",7),(1,"Vodafone.de","Vodafone","26202",7),(1,"o2 - de","o2 - de","26203",7),,(0,1,2,3,4),(0,1,2) OK at+cops=1,2,26201,7 OK at+cereg=1 OK at+cereg? +CEREG: 1,1 OK at&v &C: 2; &D: 2; &E: 0; &F: 0; &S: 0; &W: 0; E: 1; L: 0; M: 0; Q: 0; V: 1; X: 1; Z: 0; \Q: 3; \S: 0; \V: 0; O: 0; S0: 0; S2: 43; S3: 13; S4: 10; S5: 8; S6: 2; S7: 0; S8: 2; S9: 6; S10: 14; S11: 95; S30: 0; S103: 1; S104: 1; +FCLASS: 0; +ICF: 3,3; +IFC: 2,2; +IPR: 115200; +DR: 0; +DS: 0,0,2048,6; +CMEE: 2; +WS46: 12; +CFUN:; +CBST: 0,0,1; +CRLP: (61,61,48,6,0),(61,61,48,6,1),(240,240,52,6,2); +CV120: 1,1,1,0,0,0; +CHSN: 0,0,0,0; +CSSN: 0,0; +CREG: 0; +CGREG: 0; +CEREG: 1; +CSCS: "IRA"; +CSTA: 129; +CR: 0; +CRC: 0; +CGDCONT: (1,"IP","internet.telekom","0.0.0.0",0,0,0,0); +CGDSCONT: ; +CGTFT: ; +CGEQREQ: ; +CGEQMIN: ; +CGEQOS: ; +CGQREQ: ; +CGQMIN: ; +CGEREP: 0,0; +CGDATA: "PPP"; +CGCLASS: "A"; +CGPIAF: 0,0,0,0; +CGSMS: 3; +CSMS: 0; +CMGF: 0; +CSAS: 0; +CRES: 0; +CSCA: "+491710760000",145; +CSMP: ,,0,0; +CSDH: 0; +CSCB: 0,"",""; +ES: ,,; +ESA: 0,,,,0,0,255,; +CMOD: 0; +CEMODE: 2; +CVHU: 1; ; ; ; ; ; ; +CPIN: ��������,��������; +CMEC: 0,0,0,0; +CIND: 0,4,1,1,0,0,1,0; +CMER: 0,0,0,0,0; +CGATT: 1; ; +CPBS: "SM"; +CPMS: "SM","SM","SM"; +CNMI: 1,1,0,2,0; +CMMS: 0; +CCUG: 0,0,0; +COPS: 1,2,""; +CUSD: 0; +CAOC: 1; +CCWA: 0; +CPOL: 0,2,"",0,0,0,0; +CPLS: 0; +CTZR: 0; +CTZU: 1; +CLIP: 0; +COLP: 0; +CDIP: 0; +CLIR: 0; +CSDF: 1; +CEN: 0; ; ^DSCI: 0; ^MODE: 0; ^HSMSSS: 0,0,1,0 OK at!gstatus? !GSTATUS: Current Time: 879 Temperature: 31 Reset Counter: 2 Mode: ONLINE System mode: LTE PS state: Attached LTE band: B3 LTE bw: 20 MHz LTE Rx chan: 1300 LTE Tx chan: 19300 LTE SCC1 state:NOT ASSIGNED LTE SCC2 state:NOT ASSIGNED LTE SCC3 state:NOT ASSIGNED LTE SCC4 state:NOT ASSIGNED EMM state: Registered Normal Service RRC state: RRC Idle IMS reg state: No Srv PCC RxM RSSI: -57 PCC RxM RSRP: -88 PCC RxD RSSI: -58 PCC RxD RSRP: -90 Tx Power: -- TAC: 5815 (22549) RSRQ (dB): -10.3 Cell ID: 02a5b601 (44414465) SINR (dB): 21.4 OK at!lteinfo? !LTEINFO: Serving: EARFCN MCC MNC TAC CID Bd D U SNR PCI RSRQ RSRP RSSI RXLV 1300 262 01 22549 02A5B601 3 5 5 21 79 -7.9 -88.5 -61.7 33 IntraFreq: PCI RSRQ RSRP RSSI RXLV 79 -7.9 -88.5 -61.7 33 InterFreq: EARFCN ThresholdLow ThresholdHi Priority PCI RSRQ RSRP RSSI RXLV 500 10 8 2 218 -9.4 -103.5 -84.8 0 3749 10 14 2 95 -7.9 -81.2 -64.8 0 WCDMA: UARFCN ThreshL ThreshH Prio PSC RSCP ECN0 RXLV OK at!pcinfo? State: Online LPM voters - Temp:0, Volt:0, User:0, W_DISABLE:0, IMSWITCH:0, BIOS:0, LWM2M:0, OMADM:0, FOTA:0, RFCAL:0 LPM persistence - None OK at+cpin? +CPIN: READY OK at!usbcomp? Config Index: 1 Config Type: 3 (Generic) Interface bitmask: 0000010D (diag,nmea,modem,rmnet0) at!scact=1,1 +CME ERROR: no network service ``` To me, it seems I’m connected to the cell, but enabling my data connection seems to fail somehow? Let me know if any further information is required from my side. Thanks for your help! Best regards ---
**Author:** ![jyijyi](https://sea1.discourse-cdn.com/flex025/user_avatar/forum.sierrawireless.com/jyijyi/32/4766_2.png) [@jyijyi](https://forum.sierrawireless.com/u/jyijyi)\ **Post date:** [February 24, 2025, 5:30pm UTC](https://forum.sierrawireless.com/t/em7565-trouble-connecting-wit-at-scact-no-internet-connection-although-attached-to-mobile-network-networkmanager-modemmanager-works-fine-though/34536/2 "2025-02-24T17:30:39Z")
are you using MBPL USB driver? If yes, you can follow this: > [@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) avoid the Ubuntu changing the network name: ln -s /dev/null /etc/systemd/network/99-default.link sudo apt-get install libqmi-utils sudo apt-get install udhcpc now insert the USB to PC sudo chmod 777 /sys/class/net/wwan0/qmi/raw\_ip … Another option is to use MBIM interface by AT!USBCOMP=1,3,1009 ---
**Author:** ![schustan](https://avatars.discourse-cdn.com/v4/letter/s/58f4c7/32.png) [@schustan](https://forum.sierrawireless.com/u/schustan)\ **Post date:** [February 24, 2025, 5:34pm UTC](https://forum.sierrawireless.com/t/em7565-trouble-connecting-wit-at-scact-no-internet-connection-although-attached-to-mobile-network-networkmanager-modemmanager-works-fine-though/34536/3 "2025-02-24T17:34:41Z")
No, I’m basically using the USB serial interface directly. No specific driver, just opening /dev/ttyUSB2 and controlling it from there. I had the MBIM interface enabled previously with the correspinding USBCOMP, would it help in my case? It didn’t make a difference regarding the connection… ---
**Author:** ![jyijyi](https://sea1.discourse-cdn.com/flex025/user_avatar/forum.sierrawireless.com/jyijyi/32/4766_2.png) [@jyijyi](https://forum.sierrawireless.com/u/jyijyi)\ **Post date:** [February 24, 2025, 5:37pm UTC](https://forum.sierrawireless.com/t/em7565-trouble-connecting-wit-at-scact-no-internet-connection-although-attached-to-mobile-network-networkmanager-modemmanager-works-fine-though/34536/4 "2025-02-24T17:37:22Z")
if using MBIM interface, you don’t use AT!SCACT command. you can see below on how to use MBIM interface: ```auto owner@ubuntu:~$ sudo mbim-network /dev/cdc-wdm0 start Loading profile at /etc/mbim-network.conf... APN: CMHK APN auth protocol: unset APN user: unset APN password: unset mbim-proxy: yes Querying subscriber ready status 'mbimcli -d /dev/cdc-wdm0 --query-subscriber-ready-status --no-close --device-open-proxy'... [/dev/cdc-wdm0] Subscriber ready status retrieved: Ready state: 'initialized' Subscriber ID: '454120639576426' SIM ICCID: '89852122111085764260' Ready info: 'none' Telephone numbers: (0) 'unknown' [/dev/cdc-wdm0] Session not closed: TRID: '4' Saving state at /tmp/mbim-network-state-cdc-wdm0... (TRID: 4) Querying registration state 'mbimcli -d /dev/cdc-wdm0 --query-registration-state --no-open=4 --no-close --device-open-proxy'... [/dev/cdc-wdm0] Registration status: Network error: 'unknown' Register state: 'home' Register mode: 'manual' Available data classes: 'lte, custom' Current cellular class: 'gsm' Provider ID: '45412' Provider name: 'CMHK' Roaming text: 'unknown' Registration flags: 'packet-service-automatic-attach' [/dev/cdc-wdm0] Session not closed: TRID: '6' Saving state at /tmp/mbim-network-state-cdc-wdm0... (TRID: 6) Attaching to packet service with 'mbimcli -d /dev/cdc-wdm0 --attach-packet-service --no-open=6 --no-close --device-open-proxy'... Saving state at /tmp/mbim-network-state-cdc-wdm0... (TRID: 8) Starting network with 'mbimcli -d /dev/cdc-wdm0 --connect=apn='CMHK' --no-open=8 --no-close --device-open-proxy'... Network started successfully Saving state at /tmp/mbim-network-state-cdc-wdm0... (TRID: 11) owner@ubuntu:~$ sudo qmicli --device=/dev/cdc-wdm0 --device-open-proxy --device-open-mbim --wds-get-current-settings [/dev/cdc-wdm0] Current settings retrieved: IP Family: IPv4 IPv4 address: 10.21.119.34 IPv4 subnet mask: 255.255.255.252 IPv4 gateway address: 10.21.119.33 IPv4 primary DNS: 10.13.168.140 IPv4 secondary DNS: 10.13.200.140 MTU: 1500 Domains: none ``` ---
**Author:** ![schustan](https://avatars.discourse-cdn.com/v4/letter/s/58f4c7/32.png) [@schustan](https://forum.sierrawireless.com/u/schustan)\ **Post date:** [February 24, 2025, 5:45pm UTC](https://forum.sierrawireless.com/t/em7565-trouble-connecting-wit-at-scact-no-internet-connection-although-attached-to-mobile-network-networkmanager-modemmanager-works-fine-though/34536/5 "2025-02-24T17:45:19Z")
I’m not really sure how that is helping me to be honest. I’m trying to track network changes and monitor LTE connection parameters, and set up connections accordingly. Thus, I’m using the AT commands. Mobile broadband works well with NetworkManager and ModemManager. According to dmesg, either the cdc\_mbim driver or the qmi\_wwan driver is used, depending on the USBCOMP setting. This works well, and I have mobile broadband access. Nevertheless, I would like to connect using the AT commands, and script those. But I can’t connect using those :-/ Any idea why? ---
**Author:** ![jyijyi](https://sea1.discourse-cdn.com/flex025/user_avatar/forum.sierrawireless.com/jyijyi/32/4766_2.png) [@jyijyi](https://forum.sierrawireless.com/u/jyijyi)\ **Post date:** [February 24, 2025, 5:46pm UTC](https://forum.sierrawireless.com/t/em7565-trouble-connecting-wit-at-scact-no-internet-connection-although-attached-to-mobile-network-networkmanager-modemmanager-works-fine-though/34536/6 "2025-02-24T17:46:24Z")
then are you following this? > [@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) avoid the Ubuntu changing the network name: ln -s /dev/null /etc/systemd/network/99-default.link sudo apt-get install libqmi-utils sudo apt-get install udhcpc now insert the USB to PC sudo chmod 777 /sys/class/net/wwan0/qmi/raw\_ip … ---
**Author:** ![schustan](https://avatars.discourse-cdn.com/v4/letter/s/58f4c7/32.png) [@schustan](https://forum.sierrawireless.com/u/schustan)\ **Post date:** [February 24, 2025, 5:57pm UTC](https://forum.sierrawireless.com/t/em7565-trouble-connecting-wit-at-scact-no-internet-connection-although-attached-to-mobile-network-networkmanager-modemmanager-works-fine-though/34536/7 "2025-02-24T17:57:45Z")
Perfect, thanks a lot! I can get a connection after following this guide! Still need to figure some things out, but thank you so far!