Steps to connect your Ingenico Link 2500 for Wi-Fi
Hold down the green button to boot the reader
Once the card reader boots and lands on "This Lane Closed", key in 0-0-0-1
Select Communication Type>Wifi.
Press the yellow button to go back a menu
Select WiFi Parameters>Scan Networks
Select and authenticate with your desired SSID
Return to the previous menu and select My Networks. Ensure your desired network says "Connected"
Press the yellow button to go back a menu. Keep returning through menus until you are given the prompt to save and restart.
After the card reader reboots, press 0-0-0-0 to confirm the current IP address.