I am using the EC200T module in my router. All SIM cards are working except JIO. I am using the Modemmanager protocol. The same SIM card is working perfectly in QMI Protocol. Below are the logs
Sun Mar 13 15:39:26 2022 daemon.notice netifd: sim1 (10608): modem available at /org/freedesktop/ModemManager1/Modem/0
Sun Mar 13 15:39:26 2022 daemon.notice netifd: sim1 (10608): starting connection with apn 'jionet'...
Sun Mar 13 15:39:31 2022 daemon.notice netifd: sim1 (10608): successfully connected the modem
Sun Mar 13 15:39:32 2022 daemon.notice netifd: sim1 (10608): network operator name: Jio 4G
Sun Mar 13 15:39:32 2022 daemon.notice netifd: sim1 (10608): network operator MCCMNC: 405874
Sun Mar 13 15:39:32 2022 daemon.notice netifd: sim1 (10608): registration type: roaming
Sun Mar 13 15:39:32 2022 daemon.notice netifd: sim1 (10608): access technology: lte
Sun Mar 13 15:39:32 2022 daemon.notice netifd: sim1 (10608): signal quality: 80%
Sun Mar 13 15:39:32 2022 daemon.notice netifd: sim1 (10608): IPv4 connection setup required in interface sim1: ppp
Sun Mar 13 15:39:32 2022 daemon.notice netifd: sim1 (10608): IPv6 connection setup required in interface sim1: ppp
Sun Mar 13 15:48:10 2022 daemon.notice netifd: sim1 (12437): stopping network
Sun Mar 13 15:48:11 2022 daemon.notice netifd: sim1 (12437): IPv4 connection teardown required in interface sim1: ppp
Sun Mar 13 15:48:11 2022 daemon.notice netifd: sim1 (12437): IPv6 connection teardown required in interface sim1: ppp
Sun Mar 13 15:48:11 2022 daemon.notice netifd: sim1 (12437): running disconnection (ppp method)
Sun Mar 13 15:48:11 2022 daemon.notice netifd: sim1 (12437): running disconnection (common)
Sun Mar 13 15:48:11 2022 daemon.notice netifd: sim1 (12437): Command failed: Permission denied
Sun Mar 13 15:48:14 2022 daemon.notice netifd: sim1 (12437): successfully disconnected all bearers in the modem
Sun Mar 13 15:48:15 2022 daemon.notice netifd: Interface 'sim1' is now down
Sun Mar 13 15:48:15 2022 daemon.notice netifd: Interface 'sim1' is setting up now
There is another company's SIM card which is working fine. Below are the logs.
Sun Mar 13 15:38:09 2022 user.notice ModemManager: hotplug: setting interface 'sim2' as available
Sun Mar 13 15:38:09 2022 daemon.notice netifd: Interface 'sim2' is setting up now
Sun Mar 13 15:38:09 2022 daemon.notice netifd: sim2 (7087): modem available at /org/freedesktop/ModemManager1/Modem/1
Sun Mar 13 15:38:09 2022 daemon.notice netifd: sim2 (7087): starting connection with apn 'www'...
Sun Mar 13 15:38:42 2022 daemon.notice netifd: sim2 (7087): successfully connected the modem
Sun Mar 13 15:38:42 2022 daemon.notice netifd: sim2 (7087): network operator name: Vi India
Sun Mar 13 15:38:42 2022 daemon.notice netifd: sim2 (7087): network operator MCCMNC: 40420
Sun Mar 13 15:38:42 2022 daemon.notice netifd: sim2 (7087): registration type: roaming
Sun Mar 13 15:38:42 2022 daemon.notice netifd: sim2 (7087): access technology: lte
Sun Mar 13 15:38:42 2022 daemon.notice netifd: sim2 (7087): signal quality: 80%
Sun Mar 13 15:38:42 2022 daemon.notice netifd: sim2 (7087): IPv4 connection setup required in interface sim2: ppp
Sun Mar 13 15:38:42 2022 daemon.notice netifd: sim2 (7087): IPv6 connection setup required in interface sim2: ppp
Sun Mar 13 15:38:54 2022 daemon.notice netifd: Interface 'sim2' is now up