Hello,
We are using an RG520N-EU module and managing the connectivity through quectel-cm version 1.6.4. We are also using the drivers provided by quectel. We are having an issue when connecting to a network in which the IP address received by the device changes every couple of seconds. Following, part of the log produced by quectel-cm:
[07-26_16:17:34:027] Auto find qmichannel = /dev/cdc-wdm0
[07-26_16:17:34:027] Auto find usbnet_adapter = wwan0
[07-26_16:17:34:027] netcard driver = qmi_wwan_q, driver version = V1.2.2
[07-26_16:17:34:028] qmap_mode = 1, qmap_version = 9, qmap_size = 31744, muxid = 0x81, qmap_netcard = wwan0_1
[07-26_16:17:34:029] Modem works in QMI mode
[07-26_16:17:34:037] cdc_wdm_fd = 8
[07-26_16:17:34:391] Get clientWDS = 14
[07-26_16:17:34:423] Get clientDMS = 1
[07-26_16:17:34:455] Get clientNAS = 3
[07-26_16:17:34:487] Get clientUIM = 2
[07-26_16:17:34:519] Get clientWDA = 1
[07-26_16:17:34:551] requestBaseBandVersion RG520NEUDER03A02M4G
[07-26_16:17:34:582] qmap_settings.rx_urb_size = 31744
[07-26_16:17:34:582] qmap_settings.ul_data_aggregation_max_datagrams = 11
[07-26_16:17:34:583] qmap_settings.ul_data_aggregation_max_size = 8192
[07-26_16:17:34:583] qmap_settings.dl_minimum_padding = 0
[07-26_16:17:34:711] requestGetSIMStatus SIMStatus: SIM_READY
[07-26_16:17:34:742] requestGetProfile[1] ///0/IPV4V6
[07-26_16:17:34:743] requestSetProfile[1] 5gtnoulu///0/IPV4
[07-26_16:17:34:807] requestRegistrationState2 MCC: 244, MNC: 27, PS: Attached, DataCap: LTE
[07-26_16:17:34:839] requestQueryDataCall IPv4ConnectionStatus: DISCONNECTED
[07-26_16:17:34:839] ifconfig wwan0 down
[07-26_16:17:34:843] ifconfig wwan0_1 0.0.0.0
[07-26_16:17:34:846] ifconfig wwan0_1 down
[07-26_16:17:34:871] requestSetupDataCall WdsConnectionIPv4Handle: 0xe2410390
[07-26_16:17:35:003] ifconfig wwan0 up
[07-26_16:17:35:009] ifconfig wwan0_1 up
[07-26_16:17:35:016] busybox udhcpc -f -n -q -t 5 -i wwan0_1
[07-26_16:17:37:372] udhcpc: ip addr add 10.155.7.34/255.255.255.252 broadcast + dev wwan0_1
[07-26_16:17:37:376] udhcpc: setting default routers: 10.155.7.33
[07-26_16:17:37:399] requestQueryDataCall IPv4ConnectionStatus: DISCONNECTED
[07-26_16:17:37:403] ifconfig wwan0 down
[07-26_16:17:37:408] ifconfig wwan0_1 0.0.0.0
[07-26_16:17:37:411] ifconfig wwan0_1 down
[07-26_16:17:38:455] requestSetupDataCall WdsConnectionIPv4Handle: 0xe2410390
[07-26_16:17:38:588] ifconfig wwan0 up
[07-26_16:17:38:590] ifconfig wwan0_1 up
[07-26_16:17:38:597] busybox udhcpc -f -n -q -t 5 -i wwan0_1
[07-26_16:17:39:022] udhcpc: ip addr add 10.155.7.36/255.255.255.248 broadcast + dev wwan0_1
[07-26_16:17:39:026] udhcpc: setting default routers: 10.155.7.37
[07-26_16:17:39:767] requestQueryDataCall IPv4ConnectionStatus: DISCONNECTED
[07-26_16:17:39:772] ifconfig wwan0 down
[07-26_16:17:39:779] ifconfig wwan0_1 0.0.0.0
[07-26_16:17:39:785] ifconfig wwan0_1 down
[07-26_16:17:40:824] requestSetupDataCall WdsConnectionIPv4Handle: 0xe2410390
[07-26_16:17:40:956] ifconfig wwan0 up
[07-26_16:17:40:959] ifconfig wwan0_1 up
[07-26_16:17:40:963] busybox udhcpc -f -n -q -t 5 -i wwan0_1
[07-26_16:17:41:372] udhcpc: ip addr add 10.155.7.38/255.255.255.252 broadcast + dev wwan0_1
[07-26_16:17:41:376] udhcpc: setting default routers: 10.155.7.37
[07-26_16:17:42:104] requestQueryDataCall IPv4ConnectionStatus: DISCONNECTED
[07-26_16:17:42:108] ifconfig wwan0 down
[07-26_16:17:42:114] ifconfig wwan0_1 0.0.0.0
[07-26_16:17:42:119] ifconfig wwan0_1 down
[07-26_16:17:43:160] requestSetupDataCall WdsConnectionIPv4Handle: 0xe2410390
[07-26_16:17:43:292] ifconfig wwan0 up
[07-26_16:17:43:295] ifconfig wwan0_1 up
[07-26_16:17:43:297] busybox udhcpc -f -n -q -t 5 -i wwan0_1
[07-26_16:17:43:732] udhcpc: ip addr add 10.155.7.39/255.255.255.240 broadcast + dev wwan0_1
[07-26_16:17:43:734] udhcpc: setting default routers: 10.155.7.40
[07-26_16:17:44:376] requestQueryDataCall IPv4ConnectionStatus: DISCONNECTED
The process continues like that constantly. What could be causing this issue and how could we solve it? Thank you in advance.