Ethernet performance do not achieve the standard speed by ...



EWM FAQCategoryEWMDate2020/02/25KeywordEWM-C117FL0XE,3G/4G Connection,PPP mode,mobile-broadband script,Auto reconnection if the network is terminated accidently, Ubuntu 16.04 LTS and above versionQuestion:How to establish 3G/4G connection with EWM-C109F601E/ EWM-C117FL0XE automatically when system startup on Ubuntu Linux OS?Notice:With EWM-C117FL0XE module, please remember to switch network mode to PPP mode at first.Step 1Before set up dial up connection, please install “minicom” application by typing “apt-get install minicom” through ethernet network in order to switch PPP mode for establishing 4G connectionStep 2Enter to minicom application and input following Commands one by one OrderlyAT+UUSBCONF=0AT+CFUN=16 Step 3Input “dir ../dev/ttyACM*” Command and ensure the counter of Com port will increase to 6Instructions :Step 1[Ubuntu’s Mobile Broadband]Tick “New Mobile Broadband connection” on Network Manager and apply related settings step by stepStep 2After finishing configuration, the network connection will be established automaticallyNote: please input “sudo ifconfig” command on terminal to check if the ip address is assigned or notStep 3Do ping test and ensure the connection is workable or notStep 4Copy the attached script under specific folder(/home/Desktop/Startup) on your platform Step 5 Modify the access permission of service by “sudo chmod 777 mobile-broadband-connect-2.1.sh” commandStep 6Create a startup service under specific folder(/etc/systemd/system/)which can execute “mobile-broadband-connect-2.1.sh” script when boots up system automatically <please refer to attached service file below> <Directory modification>/etc/systemd/system/AutoDialUp.service[Unit]Description=Auto Dial up serviceAfter=network.target systemd-sysctl.service systemd-modules-load.service[Service]User=rootWorkingDirectory=/home/advantech/Desktop/StartupRestart=noType=oneshotExecStart=/home/advantech/Desktop/Startup/mobile-broadband-connect-2.1.sh startRemainAfterExit=true[Install]WantedBy=multi-user.targetStep 7 Double check if the service has created under specific folder and modify the access permission of service by “sudo chmod 777 AutoDialUp.service” command.Step 8 Enable “AutoDialUp.service” service and activate it by following commands in red mark in order to execute process when system boots upStep 9 Reboot system and confirm if the 3G/4G connection can be established after booting up Step 10 Check the “AutoDialUp” service status by “systemctl status AutoDialUp.service” command if it’s activating in system backgroundNote: the script will check the current connection status every 10 seconds and do auto reconnection if the network connection is terminated ................
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