ubuntu18.04使用移远4g模块上网五分钟左右断网，之后上网断断续续。如果一开机就连不上网络，那么这次开机不论怎样都上不了网
[ 12.904928] dhd_tcpack_suppress_set: TCP ACK Suppress mode 2 -> mode 0
[ 12.904960] dhd_wl_ioctl: returning as busstate=0
[ 12.904981] dhd_dbg_detach_pkt_monitor, 2204
[ 12.905001] dhd_bus_devreset: == Power OFF ==
[ 12.905469] bcmsdh_oob_intr_unregister: Enter
[ 12.905491] bcmsdh_oob_intr_unregister: irq is not registered
[ 12.905518] dhd_txglom_enable: enable 0
[ 12.905536] dhd_conf_set_txglom_params: txglom_mode=copy
[ 12.905554] dhd_conf_set_txglom_params: txglomsize=0, deferred_tx_len=0
[ 12.905572] dhd_conf_set_txglom_params: txinrx_thres=-1, dhd_txminmax=1
[ 12.905599] dhd_conf_set_txglom_params: tx_max_offset=0, txctl_tmo_fix=300
[ 12.905617] dhd_bus_devreset: WLAN OFF DONE
[ 12.905686] wifi_platform_set_power = 0
[ 12.905714] ======== PULL WL_REG_ON(-1) LOW! ========
[ 12.905748] [WLAN_RFKILL]: rockchip_wifi_power: 0
[ 12.905782] [WLAN_RFKILL]: wifi shut off power.
[ 12.905801] dhdsdio_probe : the lock is released.
[ 12.906105] dhd_module_init: Exit err=0
[ 12.908127] mali ff9a0000.gpu: Looking up mali-supply from device tree
[ 12.908225] mali ff9a0000.gpu: Failed to get regulator
[ 12.908705] mali ff9a0000.gpu: Power control initialization failed
[ 12.946715] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
[ 13.339099] usb 4-1.4: new high-speed USB device number 5 using ehci-platform
[ 13.437743] usb 4-1.4: New USB device found, idVendor=2c7c, idProduct=0125
[ 13.437784] usb 4-1.4: New USB device strings: Mfr=1, Product=2, SerialNumber=0
[ 13.437809] usb 4-1.4: Product: Android
[ 13.437832] usb 4-1.4: Manufacturer: Android
[ 13.440938] option 4-1.4:1.0: GSM modem (1-port) converter detected
[ 13.441905] usb 4-1.4: GSM modem (1-port) converter now attached to ttyUSB0
[ 13.442877] mali ff9a0000.gpu: Looking up mali-supply from device tree
[ 13.442918] mali ff9a0000.gpu: Failed to get regulator
[ 13.443418] mali ff9a0000.gpu: Power control initialization failed
[ 13.443568] option 4-1.4:1.1: GSM modem (1-port) converter detected
[ 13.444487] usb 4-1.4: GSM modem (1-port) converter now attached to ttyUSB1
[ 13.446690] mali ff9a0000.gpu: Looking up mali-supply from device tree
[ 13.446775] mali ff9a0000.gpu: Failed to get regulator
[ 13.447365] mali ff9a0000.gpu: Power control initialization failed
[ 13.450249] option 4-1.4:1.2: GSM modem (1-port) converter detected
[ 13.452993] mali ff9a0000.gpu: Looking up mali-supply from device tree
[ 13.453190] mali ff9a0000.gpu: Failed to get regulator
[ 13.453670] mali ff9a0000.gpu: Power control initialization failed
[ 13.455208] usb 4-1.4: GSM modem (1-port) converter now attached to ttyUSB2
[ 13.456831] option 4-1.4:1.3: GSM modem (1-port) converter detected
[ 13.459413] mali ff9a0000.gpu: Looking up mali-supply from device tree
[ 13.459483] mali ff9a0000.gpu: Failed to get regulator
[ 13.459947] mali ff9a0000.gpu: Power control initialization failed
[ 13.461170] usb 4-1.4: GSM modem (1-port) converter now attached to ttyUSB3
[ 13.463808] mali ff9a0000.gpu: Looking up mali-supply from device tree
[ 13.463875] mali ff9a0000.gpu: Failed to get regulator
[ 13.464417] mali ff9a0000.gpu: Power control initialization failed
[ 13.466269] qmi_wwan_q 4-1.4:1.4: cdc-wdm0: USB WDM device
[ 13.466298] qmi_wwan_q 4-1.4:1.4: Quectel EC25&EC21&EG91&EG95&EG06&EP06&EM06&EG12&EP12&EM12&EG16&EG18&BG96&AG35 work on RawIP mode
[ 13.466626] qmi_wwan_q 4-1.4:1.4: rx_urb_size = 1520
[ 13.468252] qmi_wwan_q 4-1.4:1.4 wwan0: register 'qmi_wwan_q' at usb-fe380000.usb-1.4, WWAN/QMI device, da:f2:46:f2:61:c2
[ 13.471384] mali ff9a0000.gpu: Looking up mali-supply from device tree
[ 13.471452] mali ff9a0000.gpu: Failed to get regulator
[ 13.471945] mali ff9a0000.gpu: Power control initialization failed
[ 22.686735] gpio-4 (bt_default_wake_host): gpiod_request: status -16
[ 22.686754] export_store: status -16
[ 30.944301] gpio-4 (bt_default_wake_host): gpiod_request: status -16
[ 30.944318] export_store: status -16
[ 39.070882] gpio-4 (bt_default_wake_host): gpiod_request: status -16
[ 39.070899] export_store: status -16
[ 49.564899] tty_port_close_start: tty->count = 1 port count = 2.
[ 129.022465] cdn-dp fec00000.dp: [drm:cdn_dp_request_firmware] *ERROR* Timed out trying to load firmware
各位兄弟帮我看看问题出在哪里