Hello,
Our board connects and remains connected to our server with only eDRX sleep periods.
When a disconnect occurs we want to know if it's a connection issue to our server or a modem level issue.
Right now we check if the modem IsConnected by listening to
case LTE_LC_EVT_NW_REG_STATUS:
{
if ((evt->nw_reg_status != LTE_LC_NW_REG_REGISTERED_HOME) &&
(evt->nw_reg_status != LTE_LC_NW_REG_REGISTERED_ROAMING)) {
ModemManager::m_state = ModemState::DISCONNECTED;
break;
}
}
If the modem is disconnected there is no point in attempting a new socket connect, we are doing:
lte_lc_power_off()
nrf_modem_lib_shutdown()
Sleep(1s)
nrf_modem_lib_init()
lte_lc_system_mode_set
lte_lc_edrx_req
lte_lc_modem_events_enable
lte_lc_connect_async
Questions:
1. Is monitoring the LTE_LC_EVT_NW_REG_STATUS a correct way to detect if a modem connection is still available or it dropped out of the sudden?
If so, on first attempt to connect we get an LTE_LC_NW_REG_NOT_REGISTERED and then it connects. We should ignore that first occurrence?
2. Is the full modem reconnect code flow correct? Or should we do it without the nrf_modem_lib_shutdown + nrf_modem_lib_init?
Thanks,
Nicolae
1. Is monitoring the LTE_LC_EVT_NW_REG_STATUS a correct way to detect if a modem connection is still available or it dropped out of the sudden?
If so, on first attempt to connect we get an LTE_LC_NW_REG_NOT_REGISTERED and then it connects. We should ignore that first occurrence?
2. Is the full modem reconnect code flow correct? Or should we do it without the nrf_modem_lib_shutdown + nrf_modem_lib_init?
Thanks,
Nicolae
