Error 8202 when communicating with AX/HX

Issue

Error 8202 when communicating with AX/HX [The data connection could not be established]

Cause

Communications are being blocked by Windows Firewall

Solution

Choose one of the options below: 

• Edit Windows Firewall settings to allow Uniwell Lynx through the firewall
• Enable the PASV Mode option (Data > POS Terminals > Modify)