Hi @Daumantas,
Thanks for the fast response. Pasting logs here. Please note that I tried to change few setting on the router. these also may be reflected in the log file. Please let me know if these logs are enough.
[Tue Nov 21 09:27:29] [gsm.modem0] Config reload initiated
[Tue Nov 21 09:27:29] Checking network.interface.'mob1s1a1' ubus ID
[Tue Nov 21 09:27:29] Interface 'mob1s1a1' going down
[Tue Nov 21 09:27:29] [gsm.modem0] Cancelling uloop timeouts
[Tue Nov 21 09:27:29] [gsm.modem0] Active SIM: "1"
[Tue Nov 21 09:27:29] Option 'pdptype' changed, removing 'pref_apn' for 'mob1s1a1' interface
[Tue Nov 21 09:27:29] [gsm.modem0] Modem is already in CFUN: "2"(full) state
[Tue Nov 21 09:27:29] [gsm.modem0] SIM is ready
[Tue Nov 21 09:27:29] [gsm.modem0] Init: functionality
[Tue Nov 21 09:27:29] [gsm.modem0] Modem is already in CFUN: "2"(full) state
[Tue Nov 21 09:27:29] [gsm.modem0] Init: dhcp filter
[Tue Nov 21 09:27:29] [gsm.modem0] Init: ue usage
[Tue Nov 21 09:27:29] [gsm.modem0] GSM error in "generic_ue_usage_cb:73" (Called out method not supported), gsmd_method_id: "83"
[Tue Nov 21 09:27:29] [gsm.modem0] Init: mbn_autosel
[Tue Nov 21 09:27:29] [gsm.modem0] Init: auto_timezone
[Tue Nov 21 09:27:29] [gsm.modem0] Init: mbn
[Tue Nov 21 09:27:29] [gsm.modem0] MBN: "ROW_Generic_3GPP", SELECTED: "1", ACTIVE: "1"
[Tue Nov 21 09:27:29] [gsm.modem0] Init: usbnet
[Tue Nov 21 09:27:29] [gsm.modem0] Init: nat settings
[Tue Nov 21 09:27:29] [gsm.modem0] GSM error in "generic_nat_set_cb:309" (Called out method not supported), gsmd_method_id: "81"
[Tue Nov 21 09:27:29] [gsm.modem0] Init: auth bit
[Tue Nov 21 09:27:29] [gsm.modem0] GSM error in "generic_set_auth_bit:337" (Called out method not supported), gsmd_method_id: "149"
[Tue Nov 21 09:27:29] [gsm.modem0] Init: mgcfg
[Tue Nov 21 09:27:29] [gsm.modem0] GSM error in "generic_mgcfg_cb:366" (Called out method not supported), gsmd_method_id: "103"
[Tue Nov 21 09:27:29] [gsm.modem0] Init: msg fmt
[Tue Nov 21 09:27:29] [gsm.modem0] Init: urc port
[Tue Nov 21 09:27:29] [gsm.modem0] Init: signal query
[Tue Nov 21 09:27:29] [gsm.modem0] Init: sim state
[Tue Nov 21 09:27:29] [gsm.modem0] GSM error in "generic_sim_state_cfg_cb:483" (Called out method not supported)
[Tue Nov 21 09:27:29] [gsm.modem0] Init: sms mode
[Tue Nov 21 09:27:29] [gsm.modem0] Init: roaming svc
[Tue Nov 21 09:27:29] [gsm.modem0] Init: m2m_func
[Tue Nov 21 09:27:29] [gsm.modem0] GSM error in "generic_set_m2m_state:688" (Called out method not supported), gsmd_method_id: "96"
[Tue Nov 21 09:27:29] [gsm.modem0] Init: urc_cause
[Tue Nov 21 09:27:29] [gsm.modem0] GSM error in "generic_enable_urc_cause:532" (Called out method not supported), gsmd_method_id: "161"
[Tue Nov 21 09:27:29] [gsm.modem0] Init: modem_func
[Tue Nov 21 09:27:29] [gsm.modem0] Modem is in dynamic operation mode
[Tue Nov 21 09:27:29] [gsm.modem0] Init: sms_storage_check
[Tue Nov 21 09:27:29] [gsm.modem0] Init: set_urc_ind_cfg
[Tue Nov 21 09:27:29] [gsm.modem0] Modem is already in CFUN: "2"(full) state
[Tue Nov 21 09:27:29] [gsm.modem0] Init: functionality
[Tue Nov 21 09:27:29] [gsm.modem0] Modem is already in CFUN: "2"(full) state
[Tue Nov 21 09:27:29] [gsm.modem0] Init: net reg
[Tue Nov 21 09:27:29] [gsm.modem0] Init: net greg
[Tue Nov 21 09:27:29] [gsm.modem0] Init: net ereg
[Tue Nov 21 09:27:29] [gsm.modem0] Init: net c5greg
[Tue Nov 21 09:27:29] [gsm.modem0] GSM error in "mb_set_net_reg:603" (Called out method not supported), gsmd_method_id: "24"
[Tue Nov 21 09:27:29] [gsm.modem0] Init: clip mode
[Tue Nov 21 09:27:29] [gsm.modem0] Init: CRC mode
[Tue Nov 21 09:27:29] [gsm.modem0] Init: CNMI mode
[Tue Nov 21 09:27:29] [gsm.modem0] Scheduling init process 'CNMI mode' for "200ms"
[Tue Nov 21 09:27:29] [gsm.modem0] Modem is already in CFUN: "2"(full) state
[Tue Nov 21 09:27:29] [gsm.modem0] Init process was sheduled, last init entry executed 'CNMI mode'
[Tue Nov 21 09:27:29] [gsm.modem0] Init: net mode
[Tue Nov 21 09:27:29] [gsm.modem0] Will use "auto" service mode.
[Tue Nov 21 09:27:29] [gsm.modem0] Modem is in correct service mode "Auto"
[Tue Nov 21 09:27:29] [gsm.modem0] GSM error in "set_network_category:258" (Called out method not supported), gsmd_method_id: "114"
[Tue Nov 21 09:27:29] [gsm.modem0] Network category "m1_and_nb1" is not supported. Network category won't be changed
[Tue Nov 21 09:27:29] [gsm.modem0] Scheduling init process 'net mode' for "1500ms"
[Tue Nov 21 09:27:31] [gsm.modem0] Modem is already in CFUN: "2"(full) state
[Tue Nov 21 09:27:31] [gsm.modem0] Init process was sheduled, last init entry executed 'net mode'
[Tue Nov 21 09:27:31] [gsm.modem0] Init: default bands
[Tue Nov 21 09:27:31] [gsm.modem0] Init: SMS storage
[Tue Nov 21 09:27:31] [gsm.modem0] SMS storage: "sm"
[Tue Nov 21 09:27:31] [gsm.modem0] Modem settings init completed
[Tue Nov 21 09:27:31] [gsm.modem0] Starting connection setup
[Tue Nov 21 09:27:31] Touch: /tmp/vuci/reload_routes
[Tue Nov 21 09:27:31] [gsm.modem0] Getting APN list
[Tue Nov 21 09:27:31] [gsm.modem0] Trying to select APN with "ipv4v6" pdptype
[Tue Nov 21 09:27:31] [gsm.modem0] Will use "" APN with "ipv4v6" pdptype
[Tue Nov 21 09:27:31] Registering event handler 'mob1s1a1'
[Tue Nov 21 09:27:31] [gsm.modem0] APN "IMS" is already set for PDP 2
[Tue Nov 21 09:27:31] [gsm.modem0] Modem is already in CFUN: "2"(full) state
[Tue Nov 21 09:27:31] [gsm.modem0] Preparing connection for 'mob1s1a1' interface
[Tue Nov 21 09:27:31] [gsm.modem0] Skipping first APN to not overwrite APN for 'mob1s1a1' interface
[Tue Nov 21 09:27:31] [gsm.modem0] APN "" isn't prepared for PDP "1", preparing it
[Tue Nov 21 09:27:31] [gsm.modem0] Setting CFUN: "3"(rf)
[Tue Nov 21 09:27:32] [gsm.modem0] Setting CFUN: "2"(full)
[Tue Nov 21 09:27:35] [gsm.modem0] APN "" was successfully prepared for PDP "1"
[Tue Nov 21 09:27:35] [gsm.modem0] Attempting to establish connection to operator with "15s" of timeout
[Tue Nov 21 09:27:35] [gsm.modem0] Network registration status received: "2"(Searching)
[Tue Nov 21 09:27:35] [gsm.modem0] Mobile state: "Setting up connection settings"
[Tue Nov 21 09:27:35] [gsm.modem0] Network registration status received: "0"(Not registered)
[Tue Nov 21 09:27:35] [gsm.modem0] Mobile state: "Setting up connection settings"
[Tue Nov 21 09:27:35] [gsm.modem0] timeout: "15" get_timeout: "15"
[Tue Nov 21 09:27:35] [gsm.modem0] Modem is already in COPS: "1"(Auto) state
[Tue Nov 21 09:27:35] [gsm.modem0] Testing connection to "" operator
[Tue Nov 21 09:27:35] [gsm.modem0] Connected to operator "413 12 Sri Lanka SLT"
[Tue Nov 21 09:27:35] [gsm.modem0] Will use "auto" service mode.
[Tue Nov 21 09:27:35] [gsm.modem0] Modem is in correct service mode "Auto"
[Tue Nov 21 09:27:35] [gsm.modem0] GSM error in "set_network_category:258" (Called out method not supported), gsmd_method_id: "114"
[Tue Nov 21 09:27:35] [gsm.modem0] Network category "m1_and_nb1" is not supported. Network category won't be changed
[Tue Nov 21 09:27:35] [gsm.modem0] MBN: "ROW_Generic_3GPP", SELECTED: "1", ACTIVE: "1"
[Tue Nov 21 09:27:35] [gsm.modem0] MBN: "ROW_Generic_3GPP" saved to 'simcard' config
[Tue Nov 21 09:27:35] [gsm.modem0] Network registration status received: "0"(Not registered)
[Tue Nov 21 09:27:35] [gsm.modem0] Mobile state: "Mobile connection setup is complete"
[Tue Nov 21 09:27:35] [gsm.modem0] Network registration status received: "2"(Searching)
[Tue Nov 21 09:27:35] [gsm.modem0] Mobile state: "Mobile connection setup is complete"
[Tue Nov 21 09:27:35] [gsm.modem0] Network registration status received: "3"(Denied)
[Tue Nov 21 09:27:35] [gsm.modem0] Mobile state: "Mobile connection setup is complete"
[Tue Nov 21 09:27:35] Touch: /tmp/vuci/denied_event_3-1
[Tue Nov 21 09:27:35] [gsm.modem0] Network registration status received: "1"(Registered, home)
[Tue Nov 21 09:27:35] [gsm.modem0] Mobile state: "Mobile connection setup is complete"
[Tue Nov 21 09:27:35] Touch: /tmp/vuci/reload_routes
[Tue Nov 21 09:27:35] [gsm.modem0] -CFUN- Functionality: "Full"
[Tue Nov 21 09:27:35] [gsm.modem0] -COPS- Mode: "Auto", operator: "413 12 Sri Lanka SLT"
[Tue Nov 21 09:27:35] [gsm.modem0] -CREG- Mode: "Enabled (with location information)", status: "Denied", LAC: "", cell ID: "", technology: "Unknown"
[Tue Nov 21 09:27:35] [gsm.modem0] -CGREG- Mode: "Enabled (with location information)", status: "Registered, home", LAC: "201", cell ID: "5223681", technology: "E-UTRAN"
[Tue Nov 21 09:27:35] [gsm.modem0] -CEREG- Mode: "Enabled (with location information)", status: "Registered, home", LAC: "201", cell ID: "5223681", technology: "E-UTRAN"
[Tue Nov 21 09:27:35] [gsm.modem0] GSM error in "mb_print_reg_status:723" (Called out method not supported), gsmd_method_id: "24"
[Tue Nov 21 09:27:36] [gsm.modem0] IP address on PDP context "1": "100.104.112.182"
[Tue Nov 21 09:27:36] [gsm.modem0] Checking IP address on PDP context "1"
[Tue Nov 21 09:27:36] [gsm.modem0] PDP type on PDP context "1" is correct
[Tue Nov 21 09:27:36] Saving APN information in "network" config for 'mob1s1a1' interface
[Tue Nov 21 09:27:36] Reloading network
[Tue Nov 21 09:27:36] Checking network.interface.'mob1s1a1' ubus ID
[Tue Nov 21 09:27:36] Interface 'mob1s1a1' is going up
[Tue Nov 21 09:27:36] Setting IFUP timeout for 'mob1s1a1' of "120s"
[Tue Nov 21 09:27:43] Network event received "ifup" for 'mob1s1a1_4'
[Tue Nov 21 09:27:43] Sending PING "qmimux0" -> "8.8.8.8"
[Tue Nov 21 09:27:44] PING to "8.8.8.8" passed
[Tue Nov 21 09:27:44] [gsm.modem0] VoLTE: "Inactive"
[Tue Nov 21 09:27:44] Connection setup completed for 'mob1s1a1'
[Tue Nov 21 10:45:40] Service reload initiated
[Tue Nov 21 10:45:40] [gsm.modem0] Config reload initiated
[Tue Nov 21 10:45:40] Checking network.interface.'mob1s1a1' ubus ID
[Tue Nov 21 10:45:40] Interface 'mob1s1a1' going down
[Tue Nov 21 10:45:40] [gsm.modem0] Cancelling uloop timeouts
[Tue Nov 21 10:45:40] [gsm.modem0] Active SIM: "1"
[Tue Nov 21 10:45:40] [gsm.modem0] Modem is already in CFUN: "2"(full) state
[Tue Nov 21 10:45:40] [gsm.modem0] SIM is ready
[Tue Nov 21 10:45:40] [gsm.modem0] Init: functionality
[Tue Nov 21 10:45:40] [gsm.modem0] Modem is already in CFUN: "2"(full) state
[Tue Nov 21 10:45:40] [gsm.modem0] Init: dhcp filter
[Tue Nov 21 10:45:40] [gsm.modem0] Init: ue usage
[Tue Nov 21 10:45:40] [gsm.modem0] GSM error in "generic_ue_usage_cb:73" (Called out method not supported), gsmd_method_id: "83"
[Tue Nov 21 10:45:40] [gsm.modem0] Init: mbn_autosel
[Tue Nov 21 10:45:40] [gsm.modem0] Init: auto_timezone
[Tue Nov 21 10:45:40] [gsm.modem0] Init: mbn
[Tue Nov 21 10:45:40] [gsm.modem0] MBN: "ROW_Generic_3GPP", SELECTED: "1", ACTIVE: "1"
[Tue Nov 21 10:45:40] [gsm.modem0] Init: usbnet
[Tue Nov 21 10:45:40] [gsm.modem0] Init: nat settings
[Tue Nov 21 10:45:40] [gsm.modem0] GSM error in "generic_nat_set_cb:309" (Called out method not supported), gsmd_method_id: "81"
[Tue Nov 21 10:45:40] [gsm.modem0] Init: auth bit
[Tue Nov 21 10:45:40] [gsm.modem0] GSM error in "generic_set_auth_bit:337" (Called out method not supported), gsmd_method_id: "149"
[Tue Nov 21 10:45:40] [gsm.modem0] Init: mgcfg
[Tue Nov 21 10:45:40] [gsm.modem0] GSM error in "generic_mgcfg_cb:366" (Called out method not supported), gsmd_method_id: "103"
[Tue Nov 21 10:45:40] [gsm.modem0] Init: msg fmt
[Tue Nov 21 10:45:40] [gsm.modem0] Init: urc port
[Tue Nov 21 10:45:40] [gsm.modem0] Init: signal query
[Tue Nov 21 10:45:40] [gsm.modem0] Init: sim state
[Tue Nov 21 10:45:40] [gsm.modem0] GSM error in "generic_sim_state_cfg_cb:483" (Called out method not supported)
[Tue Nov 21 10:45:40] [gsm.modem0] Init: sms mode
[Tue Nov 21 10:45:40] [gsm.modem0] Init: roaming svc
[Tue Nov 21 10:45:40] [gsm.modem0] Init: m2m_func
[Tue Nov 21 10:45:40] [gsm.modem0] GSM error in "generic_set_m2m_state:688" (Called out method not supported), gsmd_method_id: "96"
[Tue Nov 21 10:45:40] [gsm.modem0] Init: urc_cause
[Tue Nov 21 10:45:40] [gsm.modem0] GSM error in "generic_enable_urc_cause:532" (Called out method not supported), gsmd_method_id: "161"
[Tue Nov 21 10:45:40] [gsm.modem0] Init: modem_func
[Tue Nov 21 10:45:40] [gsm.modem0] Modem is in dynamic operation mode
[Tue Nov 21 10:45:40] [gsm.modem0] Init: sms_storage_check
[Tue Nov 21 10:45:40] [gsm.modem0] Init: set_urc_ind_cfg
[Tue Nov 21 10:45:40] [gsm.modem0] Modem is already in CFUN: "2"(full) state
[Tue Nov 21 10:45:40] [gsm.modem0] Init: functionality
[Tue Nov 21 10:45:40] [gsm.modem0] Modem is already in CFUN: "2"(full) state
[Tue Nov 21 10:45:40] [gsm.modem0] Init: net reg
[Tue Nov 21 10:45:40] [gsm.modem0] Init: net greg
[Tue Nov 21 10:45:40] [gsm.modem0] Init: net ereg
[Tue Nov 21 10:45:40] [gsm.modem0] Init: net c5greg
[Tue Nov 21 10:45:40] [gsm.modem0] GSM error in "mb_set_net_reg:603" (Called out method not supported), gsmd_method_id: "24"
[Tue Nov 21 10:45:40] [gsm.modem0] Init: clip mode
[Tue Nov 21 10:45:40] [gsm.modem0] Init: CRC mode
[Tue Nov 21 10:45:40] [gsm.modem0] Init: CNMI mode
[Tue Nov 21 10:45:40] [gsm.modem0] Scheduling init process 'CNMI mode' for "200ms"
[Tue Nov 21 10:45:41] [gsm.modem0] Modem is already in CFUN: "2"(full) state
[Tue Nov 21 10:45:41] [gsm.modem0] Init process was sheduled, last init entry executed 'CNMI mode'
[Tue Nov 21 10:45:41] [gsm.modem0] Init: net mode
[Tue Nov 21 10:45:41] [gsm.modem0] Will use "auto" service mode.
[Tue Nov 21 10:45:41] [gsm.modem0] Modem is in correct service mode "Auto"
[Tue Nov 21 10:45:41] [gsm.modem0] GSM error in "set_network_category:258" (Called out method not supported), gsmd_method_id: "114"
[Tue Nov 21 10:45:41] [gsm.modem0] Network category "m1_and_nb1" is not supported. Network category won't be changed
[Tue Nov 21 10:45:41] [gsm.modem0] Scheduling init process 'net mode' for "1500ms"
[Tue Nov 21 10:45:42] [gsm.modem0] Modem is already in CFUN: "2"(full) state
[Tue Nov 21 10:45:42] [gsm.modem0] Init process was sheduled, last init entry executed 'net mode'
[Tue Nov 21 10:45:42] [gsm.modem0] Init: default bands
[Tue Nov 21 10:45:42] [gsm.modem0] Init: SMS storage
[Tue Nov 21 10:45:42] [gsm.modem0] SMS storage: "sm"
[Tue Nov 21 10:45:42] [gsm.modem0] Modem settings init completed
[Tue Nov 21 10:45:42] [gsm.modem0] Starting connection setup
[Tue Nov 21 10:45:42] Touch: /tmp/vuci/reload_routes
[Tue Nov 21 10:45:42] [gsm.modem0] Getting APN list
[Tue Nov 21 10:45:42] [gsm.modem0] Trying to select APN with "ipv4v6" pdptype
[Tue Nov 21 10:45:42] [gsm.modem0] Will use "" APN with "ipv4v6" pdptype
[Tue Nov 21 10:45:42] Registering event handler 'mob1s1a1'
[Tue Nov 21 10:45:42] [gsm.modem0] APN "IMS" is already set for PDP 2
[Tue Nov 21 10:45:42] [gsm.modem0] Modem is already in CFUN: "2"(full) state
[Tue Nov 21 10:45:42] [gsm.modem0] Preparing connection for 'mob1s1a1' interface
[Tue Nov 21 10:45:42] [gsm.modem0] Skipping first APN to not overwrite APN for 'mob1s1a1' interface
[Tue Nov 21 10:45:42] [gsm.modem0] APN "" is already set for PDP 1
[Tue Nov 21 10:45:42] [gsm.modem0] Attempting to establish connection to operator with "15s" of timeout
[Tue Nov 21 10:45:42] [gsm.modem0] timeout: "15" get_timeout: "15"
[Tue Nov 21 10:45:42] [gsm.modem0] Modem is already in COPS: "1"(Auto) state
[Tue Nov 21 10:45:42] [gsm.modem0] Testing connection to "" operator
[Tue Nov 21 10:45:42] [gsm.modem0] Connected to operator "413 12 Sri Lanka SLT"
[Tue Nov 21 10:45:42] [gsm.modem0] Will use "auto" service mode.
[Tue Nov 21 10:45:42] [gsm.modem0] Modem is in correct service mode "Auto"
[Tue Nov 21 10:45:42] [gsm.modem0] GSM error in "set_network_category:258" (Called out method not supported), gsmd_method_id: "114"
[Tue Nov 21 10:45:42] [gsm.modem0] Network category "m1_and_nb1" is not supported. Network category won't be changed
[Tue Nov 21 10:45:42] [gsm.modem0] MBN: "ROW_Generic_3GPP", SELECTED: "1", ACTIVE: "1"
[Tue Nov 21 10:45:42] [gsm.modem0] MBN: "ROW_Generic_3GPP" saved to 'simcard' config
[Tue Nov 21 10:45:42] [gsm.modem0] -CFUN- Functionality: "Full"
[Tue Nov 21 10:45:42] [gsm.modem0] -COPS- Mode: "Auto", operator: "413 12 Sri Lanka SLT"
[Tue Nov 21 10:45:42] [gsm.modem0] -CREG- Mode: "Enabled (with location information)", status: "Denied", LAC: "", cell ID: "", technology: "Unknown"
[Tue Nov 21 10:45:42] [gsm.modem0] -CGREG- Mode: "Enabled (with location information)", status: "Registered, home", LAC: "201", cell ID: "5223681", technology: "E-UTRAN"
[Tue Nov 21 10:45:42] [gsm.modem0] -CEREG- Mode: "Enabled (with location information)", status: "Registered, home", LAC: "201", cell ID: "5223681", technology: "E-UTRAN"
[Tue Nov 21 10:45:42] [gsm.modem0] GSM error in "mb_print_reg_status:723" (Called out method not supported), gsmd_method_id: "24"
[Tue Nov 21 10:45:43] [gsm.modem0] IP address on PDP context "1": "100.104.112.182"
[Tue Nov 21 10:45:43] [gsm.modem0] Checking IP address on PDP context "1"
[Tue Nov 21 10:45:43] [gsm.modem0] PDP type on PDP context "1" is correct
[Tue Nov 21 10:45:43] Saving APN information in "network" config for 'mob1s1a1' interface
[Tue Nov 21 10:45:43] Reloading network
[Tue Nov 21 10:45:43] Checking network.interface.'mob1s1a1' ubus ID
[Tue Nov 21 10:45:43] Interface 'mob1s1a1' is going up
[Tue Nov 21 10:45:43] Setting IFUP timeout for 'mob1s1a1' of "120s"
[Tue Nov 21 10:45:47] Network event received "ifup" for 'mob1s1a1_4'
[Tue Nov 21 10:45:47] Sending PING "qmimux0" -> "8.8.8.8"
[Tue Nov 21 10:45:48] PING to "8.8.8.8" passed
[Tue Nov 21 10:45:48] [gsm.modem0] VoLTE: "Inactive"
[Tue Nov 21 10:45:48] Connection setup completed for 'mob1s1a1'
[Tue Nov 21 10:50:20] [gsm.modem0] Config reload initiated
[Tue Nov 21 10:50:20] Checking network.interface.'mob1s1a1' ubus ID
[Tue Nov 21 10:50:20] Interface 'mob1s1a1' going down
[Tue Nov 21 10:50:20] [gsm.modem0] Cancelling uloop timeouts
[Tue Nov 21 10:50:20] [gsm.modem0] Active SIM: "1"
[Tue Nov 21 10:50:20] [gsm.modem0] Modem is already in CFUN: "2"(full) state
[Tue Nov 21 10:50:20] [gsm.modem0] SIM is ready
[Tue Nov 21 10:50:20] [gsm.modem0] Init: functionality
[Tue Nov 21 10:50:20] [gsm.modem0] Modem is already in CFUN: "2"(full) state
[Tue Nov 21 10:50:20] [gsm.modem0] Init: dhcp filter
[Tue Nov 21 10:50:20] [gsm.modem0] Init: ue usage
[Tue Nov 21 10:50:20] [gsm.modem0] GSM error in "generic_ue_usage_cb:73" (Called out method not supported), gsmd_method_id: "83"
[Tue Nov 21 10:50:20] [gsm.modem0] Init: mbn_autosel
[Tue Nov 21 10:50:20] [gsm.modem0] Init: auto_timezone
[Tue Nov 21 10:50:20] [gsm.modem0] Init: mbn
[Tue Nov 21 10:50:20] [gsm.modem0] MBN: "ROW_Generic_3GPP", SELECTED: "1", ACTIVE: "1"
[Tue Nov 21 10:50:20] [gsm.modem0] Init: usbnet
[Tue Nov 21 10:50:20] [gsm.modem0] Init: nat settings
[Tue Nov 21 10:50:20] [gsm.modem0] GSM error in "generic_nat_set_cb:309" (Called out method not supported), gsmd_method_id: "81"
[Tue Nov 21 10:50:20] [gsm.modem0] Init: auth bit
[Tue Nov 21 10:50:20] [gsm.modem0] GSM error in "generic_set_auth_bit:337" (Called out method not supported), gsmd_method_id: "149"
[Tue Nov 21 10:50:20] [gsm.modem0] Init: mgcfg
[Tue Nov 21 10:50:20] [gsm.modem0] GSM error in "generic_mgcfg_cb:366" (Called out method not supported), gsmd_method_id: "103"
[Tue Nov 21 10:50:20] [gsm.modem0] Init: msg fmt
[Tue Nov 21 10:50:20] [gsm.modem0] Init: urc port
[Tue Nov 21 10:50:20] [gsm.modem0] Init: signal query
[Tue Nov 21 10:50:20] [gsm.modem0] Init: sim state
[Tue Nov 21 10:50:20] [gsm.modem0] GSM error in "generic_sim_state_cfg_cb:483" (Called out method not supported)
[Tue Nov 21 10:50:20] [gsm.modem0] Init: sms mode
[Tue Nov 21 10:50:20] [gsm.modem0] Init: roaming svc
[Tue Nov 21 10:50:20] [gsm.modem0] Init: m2m_func
[Tue Nov 21 10:50:20] [gsm.modem0] GSM error in "generic_set_m2m_state:688" (Called out method not supported), gsmd_method_id: "96"
[Tue Nov 21 10:50:20] [gsm.modem0] Init: urc_cause
[Tue Nov 21 10:50:20] [gsm.modem0] GSM error in "generic_enable_urc_cause:532" (Called out method not supported), gsmd_method_id: "161"
[Tue Nov 21 10:50:20] [gsm.modem0] Init: modem_func
[Tue Nov 21 10:50:20] [gsm.modem0] Modem is in dynamic operation mode
[Tue Nov 21 10:50:20] [gsm.modem0] Init: sms_storage_check
[Tue Nov 21 10:50:20] [gsm.modem0] Init: set_urc_ind_cfg
[Tue Nov 21 10:50:20] [gsm.modem0] Modem is already in CFUN: "2"(full) state
[Tue Nov 21 10:50:20] [gsm.modem0] Init: functionality
[Tue Nov 21 10:50:20] [gsm.modem0] Modem is already in CFUN: "2"(full) state
[Tue Nov 21 10:50:20] [gsm.modem0] Init: net reg
[Tue Nov 21 10:50:20] [gsm.modem0] Init: net greg
[Tue Nov 21 10:50:20] [gsm.modem0] Init: net ereg
[Tue Nov 21 10:50:20] [gsm.modem0] Init: net c5greg
[Tue Nov 21 10:50:20] [gsm.modem0] GSM error in "mb_set_net_reg:603" (Called out method not supported), gsmd_method_id: "24"
[Tue Nov 21 10:50:20] [gsm.modem0] Init: clip mode
[Tue Nov 21 10:50:20] [gsm.modem0] Init: CRC mode
[Tue Nov 21 10:50:20] [gsm.modem0] Init: CNMI mode
[Tue Nov 21 10:50:20] [gsm.modem0] Scheduling init process 'CNMI mode' for "200ms"
[Tue Nov 21 10:50:20] [gsm.modem0] Modem is already in CFUN: "2"(full) state
[Tue Nov 21 10:50:20] [gsm.modem0] Init process was sheduled, last init entry executed 'CNMI mode'
[Tue Nov 21 10:50:20] [gsm.modem0] Init: net mode
[Tue Nov 21 10:50:20] [gsm.modem0] Will use "auto" service mode.
[Tue Nov 21 10:50:20] [gsm.modem0] Modem is in correct service mode "Auto"
[Tue Nov 21 10:50:20] [gsm.modem0] GSM error in "set_network_category:258" (Called out method not supported), gsmd_method_id: "114"
[Tue Nov 21 10:50:20] [gsm.modem0] Network category "m1_and_nb1" is not supported. Network category won't be changed
[Tue Nov 21 10:50:20] [gsm.modem0] Scheduling init process 'net mode' for "1500ms"
[Tue Nov 21 10:50:22] [gsm.modem0] Modem is already in CFUN: "2"(full) state
[Tue Nov 21 10:50:22] [gsm.modem0] Init process was sheduled, last init entry executed 'net mode'
[Tue Nov 21 10:50:22] [gsm.modem0] Init: default bands
[Tue Nov 21 10:50:22] [gsm.modem0] Init: SMS storage
[Tue Nov 21 10:50:22] [gsm.modem0] SMS storage: "sm"
[Tue Nov 21 10:50:22] [gsm.modem0] Modem settings init completed
[Tue Nov 21 10:50:22] [gsm.modem0] Starting connection setup
[Tue Nov 21 10:50:22] Touch: /tmp/vuci/reload_routes
[Tue Nov 21 10:50:22] [gsm.modem0] Getting APN list
[Tue Nov 21 10:50:22] [gsm.modem0] Trying to select APN with "ipv4v6" pdptype
[Tue Nov 21 10:50:22] [gsm.modem0] Will use "" APN with "ipv4v6" pdptype
[Tue Nov 21 10:50:22] Registering event handler 'mob1s1a1'
[Tue Nov 21 10:50:22] [gsm.modem0] APN "IMS" is already set for PDP 2
[Tue Nov 21 10:50:22] [gsm.modem0] Modem is already in CFUN: "2"(full) state
[Tue Nov 21 10:50:22] [gsm.modem0] Preparing connection for 'mob1s1a1' interface
[Tue Nov 21 10:50:22] [gsm.modem0] Skipping first APN to not overwrite APN for 'mob1s1a1' interface
[Tue Nov 21 10:50:22] [gsm.modem0] APN "" is already set for PDP 1
[Tue Nov 21 10:50:22] [gsm.modem0] Attempting to establish connection to operator with "15s" of timeout
[Tue Nov 21 10:50:22] [gsm.modem0] timeout: "15" get_timeout: "15"
[Tue Nov 21 10:50:22] [gsm.modem0] Modem is already in COPS: "1"(Auto) state
[Tue Nov 21 10:50:22] [gsm.modem0] Testing connection to "" operator
[Tue Nov 21 10:50:22] [gsm.modem0] Connected to operator "413 12 Sri Lanka SLT"
[Tue Nov 21 10:50:22] [gsm.modem0] Will use "auto" service mode.
[Tue Nov 21 10:50:22] [gsm.modem0] Modem is in correct service mode "Auto"
[Tue Nov 21 10:50:22] [gsm.modem0] GSM error in "set_network_category:258" (Called out method not supported), gsmd_method_id: "114"
[Tue Nov 21 10:50:22] [gsm.modem0] Network category "m1_and_nb1" is not supported. Network category won't be changed
[Tue Nov 21 10:50:22] [gsm.modem0] MBN: "ROW_Generic_3GPP", SELECTED: "1", ACTIVE: "1"
[Tue Nov 21 10:50:22] [gsm.modem0] MBN: "ROW_Generic_3GPP" saved to 'simcard' config
[Tue Nov 21 10:50:22] [gsm.modem0] -CFUN- Functionality: "Full"
[Tue Nov 21 10:50:22] [gsm.modem0] -COPS- Mode: "Auto", operator: "413 12 Sri Lanka SLT"
[Tue Nov 21 10:50:22] [gsm.modem0] -CREG- Mode: "Enabled (with location information)", status: "Denied", LAC: "", cell ID: "", technology: "Unknown"
[Tue Nov 21 10:50:22] [gsm.modem0] -CGREG- Mode: "Enabled (with location information)", status: "Registered, home", LAC: "201", cell ID: "5223681", technology: "E-UTRAN"
[Tue Nov 21 10:50:22] [gsm.modem0] -CEREG- Mode: "Enabled (with location information)", status: "Registered, home", LAC: "201", cell ID: "5223681", technology: "E-UTRAN"
[Tue Nov 21 10:50:22] [gsm.modem0] GSM error in "mb_print_reg_status:723" (Called out method not supported), gsmd_method_id: "24"
[Tue Nov 21 10:50:22] [gsm.modem0] IP address on PDP context "1": "100.104.112.182"
[Tue Nov 21 10:50:22] [gsm.modem0] Checking IP address on PDP context "1"
[Tue Nov 21 10:50:22] [gsm.modem0] PDP type on PDP context "1" is correct
[Tue Nov 21 10:50:22] Saving APN information in "network" config for 'mob1s1a1' interface
[Tue Nov 21 10:50:22] Reloading network
[Tue Nov 21 10:50:22] Checking network.interface.'mob1s1a1' ubus ID
[Tue Nov 21 10:50:22] Interface 'mob1s1a1' is going up
[Tue Nov 21 10:50:22] Setting IFUP timeout for 'mob1s1a1' of "120s"
[Tue Nov 21 10:50:31] Network event received "ifup" for 'mob1s1a1_4'
[Tue Nov 21 10:50:31] Sending PING "qmimux0" -> "8.8.8.8"
[Tue Nov 21 10:50:32] PING to "8.8.8.8" passed
[Tue Nov 21 10:50:32] [gsm.modem0] VoLTE: "Inactive"
[Tue Nov 21 10:50:32] Connection setup completed for 'mob1s1a1'
Thanks
Edit: Router and modem both are in latest firmware.