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to enter router Web interface type http://192.168.1.1 in your web browser. Welcome page:
use default username: admin and password: admin01 when prompted for authentication. You will be asked to change password before you can continue. (If password was already changed, check label on Teltonika)
In right upper corner select Advanced mode to see all options. This will allow you to choose from a larger variety of settings.
Click System - Administration and choose Access Control to check which options are enabled:
click Services - Auto reboot - use IP address that you can ping from this SIM card and APN (OCEAN IP, radius server IP, ... )
click Network - Firewall and then Port forwarding. If you have more charging station connected to the same router you will have to make more forward rules to each station. In that case you will also have to change IP of the charging station. Example: INCH 1 external port 10000, internal 80, local IP 192.168.1.250
click Network - Interfaces - edit LAN. You can change router IP here if needed.
click -Network - Wireless and disable / change this option if needed
disable DNS rebind protection under Network / DNS
click Network - Interfaces - edit Mobile and configure APN settings
Click Network - Interfaces. If your APN settings are correct you will see IP and APN name
If you want to change password or router name click System - System users - change password
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At this point, WAN port should work as LAN. Go ahead and try to swap from your to current port to WAN, you should be able to ping the router.