Ingenico Telium Troubleshooting
  • 29 Aug 2022
  • 3 Minutes to read
  • Contributors
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Ingenico Telium Troubleshooting

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Below are some general troubleshooting tips for Ingenico Telium terminals. For issues specific to your terminal model, please navigate to the article pertaining to your specific model.

Troubleshooting the Connection


This means that the credit card machine has tried all communication types available (wired internet, dial-up, wireless) and is unable to communicate with us. Below are the most common ways to resolving your connectivity issues. Use the "Testing the Connection" instructions above to see if your credit card machine is working again.

  • Check connections to the terminal (power cord and Ethernet or phone line) if it is connected by an Ethernet cord- is the internet working?
  • Check communication settings:
    • If you terminal is connected through ethernet- is the code set to 210 or 200? If it is connected primarily through the phone line is it set to 120 or 100?
  • Try unplugging the terminal from power and unplug the terminal from the router. Once disconnected from the terminal restart model and/or router.
  • Leave the terminal unplugged for a few minutes and then plug the terminal back into power and plug it back into the router. Wait for re-connection.
  • Once the terminal has restarted, try performing a keyload and key exchange

Power Cycle

Most technical support issues are resolved by unplugging the power from the terminal and plugging it back in (your transactions will not be lost). For the Ingenico IWL220 Bluetooth units, you should unplug the power from the communication base as well as the handheld terminal.

Internet Connections - Static IP vs Dynamic IP

When first connecting your credit card machine to an internet connection, make sure that you have dynamic IP network available so that the machine can get a connection automatically. If your network is on static IP, contact us for instructions on how to setup your terminal using a static IP.

IWL250 Wireless (3G) Connectivity

If you are having difficult processing a transaction using an IWL250 long-range terminal, check the number of reception bars in the top-left of the screen. The "3G" icon should be displayed in green. If not, your credit card machine may not have enough signal strength in your immediate area.

If you have access to a phone or ethernet connection, your IWL 250 can be connected to those sources if cell network coverage drops. Plug the appropriate connection into the base and set the IWL 250 connection type by following these instructions.

Firewall Settings


Ensure your incoming and outgoing traffic is allowed on

  • Port 439
    If hardcoded IP information is required, the IP address ranges are 198.203.191.x and 198.203.192.x (the x stands for all numbers between 0 and 255)


Ensure your incoming and outgoing traffic is allowed on

  • Ingenico Tetra TCP port: 6443
    If hardcoded IP information is required, the IP ranges are 198.203.191.x and 198.203.192.x (the X stands for all numbers between 0 and 255).

For Transactions

Ensure your incoming and outgoing traffic is allowed on https://

  • Port 443 (all models) If hardcoded IP information is required, the address ranges are 216.235.178.x and 216.235.188.x (the X stands for all numbers between 0 and 255)

Restarting the Terminal

To restart a terminal press the # and yellow key together.

Please note if the # and yellow key is pressed together for the IWL220 or the IWL250 it will power down the terminal. Ensure to press the green key in order to restore the power on either of these terminals.

Four Lights on Terminal - Batch is not Settling

Remove the battery from the terminal Once the terminal is turned back on the four lights will no longer appear and you can now settle the batch

PMS or COMM Remote Download Failed Error Minus 4

If an error PMS/Comm Remote Download Failed Error Minus 4 appears on your terminal, that indicates that the terminal is trying to update overnight and has no connection.

Please perform a partial download in the morning.

Configuring a PBX Code

If you need to have a special number or sequence of numbers to reach an outside telephone line, this is called the PBX code and must be entered into the terminal before it can use the telephone line.

Press #
Press 3 for Setup
Press 2 for Communications
Press 2 for Dial
Press 1 for Access Code

Key in the correct number needed to dial out. If a pause is needed press the correct key for the needed number and then press .,#* and press F until you see a comma, then press the next needed number.
Press Enter when complete.
Press the red Cancel key to return to the welcome screen.