Cześć i kopę lat!
Proszę o pomoc w restarcie modemu LTE i interfejsów (wiem że sprzęt trochę stary). Niestety zestaw dziwnie się zachowuje i nie mogę dojść jak ponowić inicjalizację modemu i połączenia bez resetowania całego routera / odcięcia zasilania. Samo ifup wan nie pomaga: w zasadzie nie ma reakcji, czasami widzę w GUI że była próba wznowienia, czasami widzę że wciąż je trzyma ale pakiety nie idą.
Router docelowo stoi w lokalizacji do której nie mam na codzień dostępu. Na potrzeby monitoringu i modyfikacji ustawień ogrzewania łączy się z serwerem VPN w domu. Niestety sygnał LTE jest tam dość słaby, a sam modem od zawsze co jakiś czas gubił połączenie. Czasami raz na parę dni, czasami parę razy dziennie i to niezależnie czy pracowałem na łączu czy nie. Generalnie pomaga tylko odcięcie zasilania (i tak nie zawsze za pierwszym razem), co nie wchodzi w tym przypadku w grę (na razie). Planuję, aby sterownik pieca chodził w oparciu o alternatywne oprogramowanie znajdujące się na innym urządzeniu, w dodatku po WiFi, dlatego chciiałbym uniknąć rozpinania całej sieci czy resetowania routera.
Możliwe, że to problemy z zasilaniem, ale używałem go w tym zestawie przez rok w mieście i zawieszał się raz na miesiąc, ale jednak.
Generalnie zdarza się, że modem się jakby rozłącza (czerwona lampka). Potrafię to zreprodukować wyjmując kartę SIM na chwilę. Komenda AT:
# chat -t 3 -e '' 'AT+CFUN=1,1' OK >> /dev/ttyUSB3 < /dev/ttyUSB3
po chwili przywraca jego działanie, widać dane modemu, siłę sygnału itp. ale próba ifup wan w zasadzie nic nie daje. Często sam restart urządzenia też nic nie daje, dopiero wyjęcie całości z gniazdka i to mnie dziwi.
Podobnie ma się sprawa w przypadku, kiedy po prostu wyjmę modem z USB i po chwili włożę z powrotem. Urządzenie jest wykrywane automatycznie, ale połączenie się nie wznawia. Próbowałem także użyć monitora połączenia, ale on robi tylko ifup wan. Wydaje mi się, że mam problem z:
1. ponownym zainicjowaniem modemu.
2. zrestartowaniem interfejsu.
Próbowałem także wykonać komendy ze skryptu 3g.chat:
root@ostr:~# chat -t 3 -e '' 'AT&F' OK >> /dev/ttyUSB3 < /dev/ttyUSB3
AT&F
OK
root@ostr:~# chat -t 3 -e '' 'ATE1' OK >> /dev/ttyUSB3 < /dev/ttyUSB3
ATE1
OK
root@ostr:~# chat -t 3 -e '' 'AT+CGDCONT=1,"IP","internet"' OK >> /dev/ttyUSB3 <
/dev/ttyUSB3
AT+CGDCONT=1,"IP","internet"
OK
root@ostr:~# chat -t 3 -e '' 'ATD*99#' OK >> /dev/ttyUSB3 < /dev/ttyUSB3
ATD*99#
CONNECT 100000000
root@ostr:~# ifup wan
ale dalej nic... domyślam się że czegoś tu jeszcze brakuje, ale nie wiem gdzie szukać...
Jak wymusić restart modemu i połączenia tak jakby to był pierwszy restart systemu?
Dane o zestawie
TP-Link TL-WR710N + ZTE MF821 + Play
Modem:
# chat -t 3 -e '' 'ATI' OK >> /dev/ttyUSB3 < /dev/ttyUSB3
ATI
Manufacturer: ZTE Corporation
Model: MF821
Revision: M9200B-SCAQDBZD-3.3.330080T 1 [Mar 12 2012 09:00:00]
SVN: 01
IMEI: 861173XXXXXXX
+GCAP: +CGSM
OK
Konfiguracja sieci:
# cat /etc/config/network
config interface 'loopback'
option ifname 'lo'
option proto 'static'
option ipaddr '127.0.0.1'
option netmask '255.0.0.0'
config globals 'globals'
option ula_prefix 'fdee:cec0:74a5::/48'
config interface 'lan'
option type 'bridge'
option proto 'static'
option netmask '255.255.255.0'
option ip6assign '60'
option ifname 'eth1 eth0'
option ipaddr '192.168.2.1'
config interface 'wan6'
option ifname 'eth0'
option proto 'dhcpv6'
config interface 'vpn'
option ifname 'tun0'
option proto 'none'
config interface 'wan'
option apn 'internet'
option device '/dev/cdc-wdm0'
option modes 'all'
option proto 'qmi'
Fragment logów po odcięciu zasilania i restarcie kiedy modem się ładnie łączy:
Thu Sep 16 23:20:33 2021 kern.debug kernel: [ 12.829531] ath: Regpair used: 0x3a
Thu Sep 16 23:20:33 2021 kern.debug kernel: [ 12.841378] ieee80211 phy0: Selected rate control algorithm 'minstrel_ht'
Thu Sep 16 23:20:33 2021 kern.info kernel: [ 12.849424] ieee80211 phy0: Atheros AR9330 Rev:1 mem=0xb8100000, irq=2
Thu Sep 16 23:20:33 2021 user.info kernel: [ 12.911075] kmodloader: done loading kernel modules from /etc/modules.d/*
Thu Sep 16 23:20:33 2021 kern.info kernel: [ 14.580796] usb 1-1: USB disconnect, device number 2
Thu Sep 16 23:20:36 2021 kern.info kernel: [ 19.030665] usb 1-1: new high-speed USB device number 3 using ehci-platform
Thu Sep 16 23:20:36 2021 kern.info kernel: [ 19.198893] option 1-1:1.0: GSM modem (1-port) converter detected
Thu Sep 16 23:20:36 2021 kern.info kernel: [ 19.204062] usb 1-1: GSM modem (1-port) converter now attached to ttyUSB0
Thu Sep 16 23:20:36 2021 kern.info kernel: [ 19.211519] option 1-1:1.1: GSM modem (1-port) converter detected
Thu Sep 16 23:20:36 2021 kern.info kernel: [ 19.216790] usb 1-1: GSM modem (1-port) converter now attached to ttyUSB1
Thu Sep 16 23:20:36 2021 kern.info kernel: [ 19.224322] option 1-1:1.2: GSM modem (1-port) converter detected
Thu Sep 16 23:20:36 2021 kern.info kernel: [ 19.229670] usb 1-1: GSM modem (1-port) converter now attached to ttyUSB2
Thu Sep 16 23:20:36 2021 kern.info kernel: [ 19.237159] option 1-1:1.3: GSM modem (1-port) converter detected
Thu Sep 16 23:20:36 2021 kern.info kernel: [ 19.242585] usb 1-1: GSM modem (1-port) converter now attached to ttyUSB3
Thu Sep 16 23:20:36 2021 kern.info kernel: [ 19.344769] qmi_wwan 1-1:1.4: cdc-wdm0: USB WDM device
Thu Sep 16 23:20:36 2021 kern.info kernel: [ 19.349956] qmi_wwan 1-1:1.4 wwan0: register 'qmi_wwan' at usb-ehci-platform-1, WWAN/QMI device, e2:4f:11:3d:fc:ad
Thu Sep 16 23:20:38 2021 user.notice : Added device handler type: 8021ad
Thu Sep 16 23:20:38 2021 user.notice : Added device handler type: 8021q
Thu Sep 16 23:20:38 2021 user.notice : Added device handler type: macvlan
Thu Sep 16 23:20:38 2021 user.notice : Added device handler type: bridge
Thu Sep 16 23:20:38 2021 user.notice : Added device handler type: Network device
Thu Sep 16 23:20:38 2021 user.notice : Added device handler type: tunnel
Thu Sep 16 23:20:39 2021 cron.info crond[973]: crond (busybox 1.25.1) started, log level 5
Thu Sep 16 23:20:41 2021 authpriv.info dropbear[1026]: Not backgrounding
Thu Sep 16 23:20:47 2021 kern.info kernel: [ 30.155570] device eth1 entered promiscuous mode
Thu Sep 16 23:20:47 2021 daemon.notice netifd: Interface 'lan' is enabled
Thu Sep 16 23:20:47 2021 daemon.notice netifd: Interface 'lan' is setting up now
Thu Sep 16 23:20:47 2021 daemon.notice netifd: Interface 'lan' is now up
Thu Sep 16 23:20:47 2021 kern.info kernel: [ 30.161076] IPv6: ADDRCONF(NETDEV_UP): br-lan: link is not ready
Thu Sep 16 23:20:47 2021 daemon.notice netifd: Interface 'wan6' is enabled
Thu Sep 16 23:20:47 2021 kern.info kernel: [ 30.192709] device eth0 entered promiscuous mode
Thu Sep 16 23:20:47 2021 kern.info kernel: [ 30.195977] br-lan: port 2(eth0) entered forwarding state
Thu Sep 16 23:20:47 2021 kern.info kernel: [ 30.201396] br-lan: port 2(eth0) entered forwarding state
Thu Sep 16 23:20:47 2021 kern.info kernel: [ 30.206758] IPv6: ADDRCONF(NETDEV_CHANGE): br-lan: link becomes ready
Thu Sep 16 23:20:47 2021 daemon.notice netifd: Interface 'loopback' is enabled
Thu Sep 16 23:20:47 2021 daemon.notice netifd: Interface 'loopback' is setting up now
Thu Sep 16 23:20:47 2021 daemon.notice netifd: Interface 'loopback' is now up
Thu Sep 16 23:20:47 2021 daemon.notice netifd: Interface 'wan' is setting up now
Thu Sep 16 23:20:47 2021 daemon.notice netifd: bridge 'br-lan' link is up
Thu Sep 16 23:20:47 2021 daemon.notice netifd: Interface 'lan' has link connectivity
Thu Sep 16 23:20:47 2021 daemon.notice netifd: Network device 'lo' link is up
Thu Sep 16 23:20:47 2021 daemon.notice netifd: Interface 'loopback' has link connectivity
Thu Sep 16 23:20:48 2021 user.notice firewall: Reloading firewall due to ifup of lan (br-lan)
Thu Sep 16 23:20:48 2021 kern.info kernel: [ 31.120681] br-lan: port 2(eth0) entered disabled state
Thu Sep 16 23:20:48 2021 daemon.notice netifd: wan (1164): Waiting for network registration
Thu Sep 16 23:20:49 2021 daemon.notice netifd: wan (1164): Starting network wan
Thu Sep 16 23:20:49 2021 daemon.notice netifd: bridge 'br-lan' link is down
Thu Sep 16 23:20:49 2021 daemon.notice netifd: Interface 'lan' has link connectivity loss
Thu Sep 16 23:20:49 2021 daemon.notice netifd: wan (1164): Setting up wwan0
Thu Sep 16 23:20:49 2021 daemon.notice netifd: Interface 'wan' is now up
Thu Sep 16 23:20:49 2021 daemon.notice netifd: Network device 'wwan0' link is up
Thu Sep 16 23:20:50 2021 daemon.notice netifd: Network alias 'wwan0' link is up
Thu Sep 16 23:20:50 2021 daemon.notice netifd: Interface 'wan_4' is enabled
Thu Sep 16 23:20:50 2021 daemon.notice netifd: Interface 'wan_4' has link connectivity
Thu Sep 16 23:20:50 2021 daemon.notice netifd: Interface 'wan_4' is setting up now
Thu Sep 16 23:20:50 2021 daemon.notice netifd: wan (1164): Command failed: Unknown error
Thu Sep 16 23:20:50 2021 kern.debug kernel: [ 32.624225] ath: EEPROM regdomain: 0x8268
Thu Sep 16 23:20:50 2021 kern.debug kernel: [ 32.624257] ath: EEPROM indicates we should expect a country code
Thu Sep 16 23:20:50 2021 kern.debug kernel: [ 32.624278] ath: doing EEPROM country->regdmn map search
Thu Sep 16 23:20:50 2021 kern.debug kernel: [ 32.624295] ath: country maps to regdmn code: 0x37
Thu Sep 16 23:20:50 2021 kern.debug kernel: [ 32.624312] ath: Country alpha2 being used: PL
Thu Sep 16 23:20:50 2021 kern.debug kernel: [ 32.624326] ath: Regpair used: 0x37
Thu Sep 16 23:20:50 2021 kern.debug kernel: [ 32.624345] ath: regdomain 0x8268 dynamically updated by user
Thu Sep 16 23:20:50 2021 daemon.info procd: - init complete -
Thu Sep 16 23:20:50 2021 daemon.notice netifd: wan_4 (1335): udhcpc: started, v1.25.1
Thu Sep 16 23:20:51 2021 daemon.notice netifd: wan_4 (1335): udhcpc: sending discover
Thu Sep 16 23:20:51 2021 daemon.notice netifd: wan_4 (1335): udhcpc: sending select for 10.65.55.206
Thu Sep 16 23:20:51 2021 daemon.notice netifd: wan_4 (1335): udhcpc: lease of 10.65.55.206 obtained, lease time 7200
Thu Sep 16 23:20:51 2021 user.notice firewall: Reloading firewall due to ifup of wan (wwan0)
Thu Sep 16 23:20:52 2021 daemon.notice netifd: Interface 'wan_4' is now up
Thu Sep 16 23:20:53 2021 daemon.err hostapd: Configuration file: /var/run/hostapd-phy0.conf
Thu Sep 16 23:20:53 2021 kern.info kernel: [ 36.211089] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
Thu Sep 16 23:20:53 2021 kern.info kernel: [ 36.236673] device wlan0 entered promiscuous mode
Thu Sep 16 23:20:53 2021 daemon.notice hostapd: wlan0: interface state UNINITIALIZED->COUNTRY_UPDATE
Thu Sep 16 23:20:53 2021 daemon.err hostapd: Using interface wlan0 with hwaddr 10:fe:ed:56:ca:00 and ssid "OSTR"
Thu Sep 16 23:20:55 2021 kern.info kernel: [ 38.069002] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
Thu Sep 16 23:20:55 2021 kern.info kernel: [ 38.074206] br-lan: port 3(wlan0) entered forwarding state
Thu Sep 16 23:20:55 2021 kern.info kernel: [ 38.079451] br-lan: port 3(wlan0) entered forwarding state
Thu Sep 16 23:20:55 2021 daemon.notice hostapd: wlan0: interface state COUNTRY_UPDATE->ENABLED
Thu Sep 16 23:20:55 2021 daemon.notice hostapd: wlan0: AP-ENABLED
Thu Sep 16 23:20:55 2021 daemon.notice netifd: bridge 'br-lan' link is up
Thu Sep 16 23:20:55 2021 daemon.notice netifd: Interface 'lan' has link connectivity
Thu Sep 16 23:20:56 2021 daemon.notice netifd: Network device 'wlan0' link is up
Thu Sep 16 23:20:56 2021 daemon.notice netifd: Interface 'vpn' is enabled
Thu Sep 16 23:20:56 2021 daemon.notice netifd: Network device 'tun0' link is up
Thu Sep 16 23:20:56 2021 daemon.notice netifd: Interface 'vpn' has link connectivity
Thu Sep 16 23:20:56 2021 daemon.notice netifd: Interface 'vpn' is setting up now
Thu Sep 16 23:20:56 2021 daemon.notice netifd: Interface 'vpn' is now up
Thu Sep 16 23:20:56 2021 daemon.info dnsmasq[1517]: started, version 2.78 cachesize 150
Thu Sep 16 23:20:56 2021 daemon.info dnsmasq[1517]: DNS service limited to local subnets
Thu Sep 16 23:20:56 2021 daemon.info dnsmasq[1517]: compile time options: IPv6 GNU-getopt no-DBus no-i18n no-IDN DHCP no-DHCPv6 no-Lua TFTP no-conntrack no-ipset no-auth no-DNSSEC no-ID loop-detect inotify
Thu Sep 16 23:20:56 2021 daemon.info dnsmasq[1517]: using local addresses only for domain lan
Thu Sep 16 23:20:56 2021 daemon.info dnsmasq[1517]: reading /tmp/resolv.conf.auto
Thu Sep 16 23:20:56 2021 daemon.info dnsmasq[1517]: using local addresses only for domain lan
Thu Sep 16 23:20:56 2021 daemon.info dnsmasq[1517]: using nameserver 89.108.195.21#53
Thu Sep 16 23:20:56 2021 daemon.info dnsmasq[1517]: using nameserver 185.89.185.1#53
Thu Sep 16 23:20:56 2021 daemon.info dnsmasq[1517]: read /etc/hosts - 4 addresses
Thu Sep 16 23:20:56 2021 daemon.info dnsmasq[1517]: read /tmp/hosts/dhcp.cfg02411c - 2 addresses
Thu Sep 16 23:20:56 2021 user.notice firewall: Reloading firewall due to ifup of vpn (tun0)
Thu Sep 16 23:20:57 2021 kern.info kernel: [ 40.070588] br-lan: port 3(wlan0) entered forwarding state
Restart wan jeśli było połączenie i modem działał:
# ifup wan
Fri Sep 17 10:50:10 2021 daemon.notice netifd: wan (2602): Stopping network wan
Fri Sep 17 10:50:10 2021 daemon.notice netifd: wan_4 (1347): udhcpc: sending renew
Fri Sep 17 10:50:10 2021 daemon.notice netifd: wan_4 (1347): udhcpc: received SIGTERM
Fri Sep 17 10:50:10 2021 daemon.notice netifd: Interface 'wan_4' is now down
Fri Sep 17 10:50:10 2021 daemon.notice netifd: Network alias '' link is down
Fri Sep 17 10:50:10 2021 daemon.notice netifd: Interface 'wan_4' has link connectivity loss
Fri Sep 17 10:50:10 2021 daemon.notice netifd: Interface 'wan_4' is disabled
Fri Sep 17 10:50:10 2021 daemon.warn dnsmasq[1589]: no servers found in /tmp/resolv.conf.auto, will retry
Fri Sep 17 10:50:10 2021 daemon.notice netifd: wan (2602): "No effect"
Fri Sep 17 10:50:10 2021 daemon.notice netifd: wan (2602): Command failed: Permission denied
Fri Sep 17 10:50:10 2021 daemon.notice netifd: Interface 'wan' is now down
Fri Sep 17 10:50:10 2021 daemon.notice netifd: Interface 'wan' is setting up now
Fri Sep 17 10:50:10 2021 daemon.notice netifd: wan (2631): "No effect"
Fri Sep 17 10:50:10 2021 daemon.notice netifd: wan (2631): Waiting for network registration
Fri Sep 17 10:50:10 2021 daemon.notice netifd: wan (2631): Starting network wan
Fri Sep 17 10:50:10 2021 daemon.notice netifd: wan (2631): Setting up wwan0
Fri Sep 17 10:50:10 2021 daemon.notice netifd: Interface 'wan' is now up
Fri Sep 17 10:50:10 2021 daemon.notice netifd: Network device 'wwan0' link is up
Fri Sep 17 10:50:10 2021 daemon.notice netifd: Network alias 'wwan0' link is up
Fri Sep 17 10:50:10 2021 daemon.notice netifd: Interface 'wan_4' is enabled
Fri Sep 17 10:50:10 2021 daemon.notice netifd: Interface 'wan_4' has link connectivity
Fri Sep 17 10:50:10 2021 daemon.notice netifd: Interface 'wan_4' is setting up now
Fri Sep 17 10:50:10 2021 daemon.notice netifd: wan (2631): Command failed: Unknown error
Fri Sep 17 10:50:11 2021 daemon.notice netifd: wan_4 (2678): udhcpc: started, v1.25.1
Fri Sep 17 10:50:11 2021 user.notice firewall: Reloading firewall due to ifup of wan (wwan0)
Fri Sep 17 10:50:11 2021 daemon.notice netifd: wan_4 (2678): udhcpc: sending discover
Fri Sep 17 10:50:12 2021 daemon.notice netifd: wan_4 (2678): udhcpc: sending select for 10.146.173.131
Fri Sep 17 10:50:12 2021 daemon.notice netifd: wan_4 (2678): udhcpc: lease of 10.146.173.131 obtained, lease time 7200
Fri Sep 17 10:50:12 2021 daemon.notice netifd: Interface 'wan_4' is now up
Fri Sep 17 10:50:12 2021 daemon.info dnsmasq[1589]: reading /tmp/resolv.conf.auto
Fri Sep 17 10:50:12 2021 daemon.info dnsmasq[1589]: using local addresses only for domain lan
Fri Sep 17 10:50:12 2021 daemon.info dnsmasq[1589]: using nameserver 89.108.195.21#53
Fri Sep 17 10:50:12 2021 daemon.info dnsmasq[1589]: using nameserver 185.89.185.1#53
Wyjęcie i włożenie z powrotem modemu do USB + ifup wan- połączenie nie jest wznawiane:
Fri Sep 17 10:51:34 2021 kern.info kernel: [ 1030.943991] usb 1-1: USB disconnect, device number 3
Fri Sep 17 10:51:34 2021 kern.info kernel: [ 1030.948048] option1 ttyUSB0: GSM modem (1-port) converter now disconnected from ttyUSB0
Fri Sep 17 10:51:34 2021 kern.info kernel: [ 1030.955708] option 1-1:1.0: device disconnected
Fri Sep 17 10:51:34 2021 kern.info kernel: [ 1030.960578] option1 ttyUSB1: GSM modem (1-port) converter now disconnected from ttyUSB1
Fri Sep 17 10:51:34 2021 kern.info kernel: [ 1030.968186] option 1-1:1.1: device disconnected
Fri Sep 17 10:51:34 2021 kern.info kernel: [ 1030.973074] option1 ttyUSB2: GSM modem (1-port) converter now disconnected from ttyUSB2
Fri Sep 17 10:51:34 2021 kern.info kernel: [ 1030.980683] option 1-1:1.2: device disconnected
Fri Sep 17 10:51:34 2021 kern.info kernel: [ 1030.985660] option1 ttyUSB3: GSM modem (1-port) converter now disconnected from ttyUSB3
Fri Sep 17 10:51:34 2021 kern.info kernel: [ 1030.993124] option 1-1:1.3: device disconnected
Fri Sep 17 10:51:34 2021 kern.info kernel: [ 1030.998225] qmi_wwan 1-1:1.4 wwan0: unregister 'qmi_wwan' usb-ehci-platform-1, WWAN/QMI device
Fri Sep 17 10:51:34 2021 daemon.notice netifd: Network device 'wwan0' link is down
Fri Sep 17 10:51:34 2021 daemon.notice netifd: Network alias 'wwan0' link is down
Fri Sep 17 10:51:34 2021 daemon.notice netifd: Interface 'wan_4' has link connectivity loss
Fri Sep 17 10:51:34 2021 daemon.notice netifd: Interface 'wan_4' is disabled
Fri Sep 17 10:51:34 2021 daemon.notice netifd: wan_4 (2678): udhcpc: SIOCGIFINDEX: No such device
Fri Sep 17 10:51:34 2021 daemon.notice netifd: wan_4 (2678): udhcpc: received SIGTERM
Fri Sep 17 10:51:42 2021 daemon.info dnsmasq[1589]: 208 192.168.2.4/62873 query[A] outlook.office.com from 192.168.2.4
Fri Sep 17 10:51:44 2021 kern.info kernel: [ 1041.492529] usb 1-1: new high-speed USB device number 4 using ehci-platform
Fri Sep 17 10:51:48 2021 kern.info kernel: [ 1044.575851] usb 1-1: USB disconnect, device number 4
Fri Sep 17 10:51:52 2021 kern.info kernel: [ 1048.911767] usb 1-1: new high-speed USB device number 5 using ehci-platform
Fri Sep 17 10:51:52 2021 kern.info kernel: [ 1049.069846] option 1-1:1.0: GSM modem (1-port) converter detected
Fri Sep 17 10:51:52 2021 kern.info kernel: [ 1049.075039] usb 1-1: GSM modem (1-port) converter now attached to ttyUSB0
Fri Sep 17 10:51:52 2021 kern.info kernel: [ 1049.082424] option 1-1:1.1: GSM modem (1-port) converter detected
Fri Sep 17 10:51:52 2021 kern.info kernel: [ 1049.087768] usb 1-1: GSM modem (1-port) converter now attached to ttyUSB1
Fri Sep 17 10:51:52 2021 kern.info kernel: [ 1049.095244] option 1-1:1.2: GSM modem (1-port) converter detected
Fri Sep 17 10:51:52 2021 kern.info kernel: [ 1049.100631] usb 1-1: GSM modem (1-port) converter now attached to ttyUSB2
Fri Sep 17 10:51:52 2021 kern.info kernel: [ 1049.108084] option 1-1:1.3: GSM modem (1-port) converter detected
Fri Sep 17 10:51:52 2021 kern.info kernel: [ 1049.113535] usb 1-1: GSM modem (1-port) converter now attached to ttyUSB3
Fri Sep 17 10:51:52 2021 kern.info kernel: [ 1049.182493] qmi_wwan 1-1:1.4: cdc-wdm0: USB WDM device
Fri Sep 17 10:51:52 2021 kern.info kernel: [ 1049.187734] qmi_wwan 1-1:1.4 wwan0: register 'qmi_wwan' at usb-ehci-platform-1, WWAN/QMI device, 86:88:ce:58:79:8e
Fri Sep 17 10:51:52 2021 daemon.notice netifd: Interface 'wan_4' is enabled
Fri Sep 17 10:52:19 2021 daemon.warn dnsmasq[1589]: no servers found in /tmp/resolv.conf.auto, will retry
Fri Sep 17 10:52:19 2021 daemon.notice netifd: Interface 'wan_4' is disabled
Fri Sep 17 10:52:19 2021 daemon.notice netifd: wan (3657): Stopping network wan
Fri Sep 17 10:52:24 2021 daemon.notice netifd: Interface 'wan' is now down
Fri Sep 17 10:52:24 2021 daemon.notice netifd: Interface 'wan' is setting up now
Fri Sep 17 10:52:55 2021 daemon.notice netifd: Network device 'tun0' link is down
Fri Sep 17 10:52:55 2021 daemon.notice netifd: Interface 'vpn' has link connectivity loss
Fri Sep 17 10:52:55 2021 daemon.notice netifd: Interface 'vpn' is now down
Fri Sep 17 10:52:55 2021 daemon.notice netifd: Interface 'vpn' is disabled