# EM7455 can't connect APN **URL:** \ **Category:** IoT Modules\ **Tags:** debug\ **Created:** [August 9, 2021, 6:46pm UTC](https://forum.sierrawireless.com/t/em7455-cant-connect-apn/24515 "2021-08-09T18:46:50Z")\ **Posts on this page:** 6\ **Page:** 1
**Author:** ![krishnadaskv](https://avatars.discourse-cdn.com/v4/letter/k/e274bd/32.png) [@krishnadaskv](https://forum.sierrawireless.com/u/krishnadaskv)\ **Post date:** [August 9, 2021, 6:46pm UTC](https://forum.sierrawireless.com/t/em7455-cant-connect-apn/24515/1 "2021-08-09T18:46:50Z")
- I can see the output of `sudo mmcli -m 0` as follows, ```auto -------------------------------- General | dbus path: /org/freedesktop/ModemManager1/Modem/0 | device id: a13799d4536930cbcbdc2afeg8j3104c57069ae0 -------------------------------- Hardware | manufacturer: Sierra Wireless, Incorporated | model: Sierra Wireless EM7455 Qualcomm® Snapdragon™ X7 LTE-A | revision: SWI9X30C_02.32.11.00 | h/w revision: EM7455 | supported: gsm-umts, lte | current: gsm-umts, lte | equipment id: 35905626987854 -------------------------------- System | device: /sys/devices/pci0000:00/0000:00:15.0/usb1/1-7 | drivers: qcserial, cdc_mbim | plugin: Sierra | primary port: cdc-wdm0 | ports: ttyUSB0 (qcdm), ttyUSB2 (at), cdc-wdm0 (mbim), | wwp0s21f0u7i12 (net) -------------------------------- Numbers | own: 07574391674 -------------------------------- Status | unlock retries: sim-pin2 (3) | state: registered | power state: on | access tech: hsdpa, hsupa | signal quality: 32% (cached) -------------------------------- Modes | supported: allowed: 3g; preferred: none | allowed: 4g; preferred: none | allowed: 3g, 4g; preferred: 3g | allowed: 3g, 4g; preferred: 4g | current: allowed: 3g, 4g; preferred: 4g -------------------------------- Bands | supported: utran-1, utran-3, utran-4, utran-5, utran-8, utran-2, | eutran-1, eutran-2, eutran-3, eutran-4, eutran-5, eutran-7, eutran-8, | eutran-12, eutran-13, eutran-20, eutran-25, eutran-41 | current: utran-1, utran-3, utran-4, utran-5, utran-8, utran-2, | eutran-1, eutran-2, eutran-3, eutran-4, eutran-5, eutran-7, eutran-8, | eutran-12, eutran-13, eutran-20, eutran-25, eutran-41 -------------------------------- IP | supported: ipv4, ipv6, ipv4v6 -------------------------------- 3GPP | imei: ------------- | enabled locks: fixed-dialing | operator id: ---- | operator name: EE | registration: home -------------------------------- 3GPP EPS | ue mode of operation: csps-2 -------------------------------- SIM | dbus path: /org/freedesktop/ModemManager1/SIM/0 -------------------------------- Bearer | dbus path: /org/freedesktop/ModemManager1/Bearer/2 ``` - but when I use `sudo mmcli -m 0 --simple connect="apn=apn=apn.com,user=username,password=password"` I am getting the following response `error: couldn't connect the modem: 'GDBus.Error:org.freedesktop.libmbim.Error.Status.ServiceNotActivated: ServiceNotActivated'` I also tried to create a bearer, but error. - Is this the way to add APN settings to the modem ? ---
**Author:** ![Vianney](https://avatars.discourse-cdn.com/v4/letter/v/71e660/32.png) [@Vianney](https://forum.sierrawireless.com/u/Vianney)\ **Post date:** [August 10, 2021, 12:06am UTC](https://forum.sierrawireless.com/t/em7455-cant-connect-apn/24515/2 "2021-08-10T00:06:16Z")
Hi @krishnadaskv , Have you tried to configure APN for the module in AT environment? Please try sudo minicom -D /dev/ttyUSB2 -b 115200 Welcome to minicom 2.7.1 OPTIONS: I18n Compiled on Aug 13 2017, 15:25:34. Port /dev/ttyUSB2, 17:02:48 Press CTRL-A Z for help on special keys at OK at+cgdcont? OK at+cgdcont=1,“ip4v6”,“yourAPN” Please try and share your result Thanks ---
**Author:** ![krishnadaskv](https://avatars.discourse-cdn.com/v4/letter/k/e274bd/32.png) [@krishnadaskv](https://forum.sierrawireless.com/u/krishnadaskv)\ **Post date:** [August 10, 2021, 7:57am UTC](https://forum.sierrawireless.com/t/em7455-cant-connect-apn/24515/3 "2021-08-10T07:57:10Z")
I tried and got the following results, ```auto at OK at+cgdcont? +CGDCONT: 1,"IP","apn=apn.com","0.0.0.0",0,0,0,0 OK at+cgdcont=1,“ip4v6”,“apnName” ERROR ``` - For the third command, I used my apn name, do I need to use [apn.com](http://apn.com) for that? - How to add username and password as well to apn settings ? ---
**Author:** ![dl5162](https://sea1.discourse-cdn.com/flex025/user_avatar/forum.sierrawireless.com/dl5162/32/2169_2.png) [@dl5162](https://forum.sierrawireless.com/u/dl5162)\ **Post date:** [August 10, 2021, 7:26pm UTC](https://forum.sierrawireless.com/t/em7455-cant-connect-apn/24515/4 "2021-08-10T19:26:16Z")
> [@krishnadaskv](#): > > `at+cgdcont=1,“ip4v6”,“apnName”` That should be `at+cgdcont=1,“ipv4v6”,“apnName”` ---
**Author:** ![krishnadaskv](https://avatars.discourse-cdn.com/v4/letter/k/e274bd/32.png) [@krishnadaskv](https://forum.sierrawireless.com/u/krishnadaskv)\ **Post date:** [August 10, 2021, 7:53pm UTC](https://forum.sierrawireless.com/t/em7455-cant-connect-apn/24515/6 "2021-08-10T19:53:10Z")
I got OK response to that ---
**Author:** ![krishnadaskv](https://avatars.discourse-cdn.com/v4/letter/k/e274bd/32.png) [@krishnadaskv](https://forum.sierrawireless.com/u/krishnadaskv)\ **Post date:** [August 10, 2021, 8:05pm UTC](https://forum.sierrawireless.com/t/em7455-cant-connect-apn/24515/7 "2021-08-10T20:05:44Z")
If I run at+cgdcont? again, I can see ```auto +CGDCONT: 1,"IPV4V6","apn.com","0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0",0,0,0,0 OK ``` Note: on at+cgdcont=1,“ip4v6”,“yourAPN”, I used [apn.com](http://apn.com), do I need to use any name ?