Support

System Requirements

eSUN/eSUN-Yomikaki Online Class eSUN-Biz
Operating System WindowsXP/Vista/7/8/10
OSX

Android/iOS
※Androids and iOS CANNOT be used when taking a Review Quiz and Mastery Test.
WindowsXP/Vista/7/8/10
OSX
WindowsXP/Vista/7/8
Browser
Internet Explorer 8.0, Firefox Version 14 or greater
Safari 1.0.3, Firefox version 14, or Internet Explorer Version 8.0 or greater
Internet Explorer 8.0, Firefox Version 14 or greater
Safari 1.0.3, Firefox version 14, or Internet Explorer Version 8.0 or greater
Internet Explorer 8.0 or greater
Bandwidth※ 500KBps 1MBps 500kBps
Plugins※ Flash Player 7,0,19,0 or greater - Matrix Engine SE version1.1
Additional software※ - Skype -
Recommended Headset with microphone Headset with microphone -

Matrix Engine

eSUN-Biz users must install Matrix Engine to their browser.
Please note that Matrix Engine runs only on Internet Explorer.
Matrix Engine can be installed from the link below.

Diagnostics

Every PC has its unique settings. In order to successfully use eSUN all the PC requirements have to be correctly configured. Additionally, network concerns outside of your control may affect your ability to use the eSUN system.
We highly recommend that you run the Diagnostics Wizard just to make sure everything is configured properly, and your network connection is suitable for the eSUN system.

Diagnostics Wizard

Contact information

If you are encountering any difficulties, please click on the link below to submit a technical support request.

stepupnihongo@icijapan.com