User Guide for VCDS HEX-NET Interface 

User Guide for VCDS HEX-NET Interface 

Discover the perfect VCDS diagnostic solution with the HEX-NET interface. This professional wireless tool makes diagnostics on VW-based vehicles a breeze. Whether you’re setting up quickly or diving into advanced configurations, enhance your performance and get the most out of your tool with this brief user’s guide. 

1. Getting Started: Physical Features 

The HEX-NET interface features three primary LED indicators and a multi-function red button. 

LED Indicator Guide 

  • First LED (Vehicle Status): Shows communication with the car. It typically flashes and then turns solid green. During active scanning, it flashes green and red. 
  • Second LED (Wi-Fi Status): * Solid Amber: Access Point (AP) mode (broadcasting its own signal). 
  • Solid Green: Infrastructure mode (connected to an existing network). 
  • Third LED (CPU Status): Flashing green indicates normal activity; flashing red means the CPU is busy. 

The Red Button Functions 

Located between the second and third LEDs, this button performs the following: 

  • Short Click: Toggles between Access Point and Infrastructure modes. 
  • 15-Second Hold: Resets the Wi-Fi password. 
  • 45-Second Hold: Performs a full factory reset. 

2. Initial Registration 

New interfaces must be registered with Ross-Tech before they lock after a limited number of uses. 

  1. Connect the HEX-NET to your computer via USB and open VCDS. 
  1. Go to Options > Test. If registration is required, it will state “Must Register”. 
  1. Click Config to open the Utility, navigate to the Registration tab, and fill out the form. 
  1. After submitting, you will receive a Transaction ID via email. Copy this into the utility and click Finalise Registration. 

3. Wi-Fi Configuration 

The HEX-NET can operate in two modes to provide flexibility for workshop or mobile use. 

Access Point (AP) Mode 

This is the default mode for mobile use where no external Wi-Fi is available. 

  • The HEX-NET broadcasts its own Wi-Fi signal (SSID is the device’s serial number). 
  • Connect your laptop, tablet, or phone directly to this signal. 
  • In VCDS Options, ensure “NET” is selected before clicking Test. 

Infrastructure Mode 

Use this to connect the HEX-NET to your home or workshop router. 

  1. Connect via USB and open the VCDS Interface Configuration Utility (click Config in VCDS Options). 
  1. Go to the Wi-Fi tab and click Scan for New Network. 
  1. Select your network, enter the password, and click OK. 
  1. The middle LED will turn solid green once connected. Note: The HEX-NET can store up to seven different Wi-Fi profiles. 

4. VCDS Mobile 

For iOS and Android users, the VCDS Mobile app (available on App Store/Google Play) simplifies connecting your mobile device to the HEX-NET. 

  • Ensure your mobile device is on the same network as the HEX-NET (Infrastructure) or connected directly to it (AP Mode). 
  • The app will automatically identify the interface and provide the IP address for access. 

5. Maintenance & Updates 

Ross-Tech recommends checking for firmware updates at least once a month to ensure compatibility with the latest vehicles. 

  1. Connect the interface via USB (vehicle connection is not required for updates). 
  1. Open VCDS, go to Options > Config. 
  1. Navigate to the Update tab and click Check for Updates. 
  1. If an update is found, click Download Update. Ensure your computer remains online during this process. 

For further support and technical resources, visit the Ross-Tech Wiki or the official forums. 

If you work on VW-based vehicles, VCDS is a must-have. Find out more by calling 0800 195 1245 or emailing sales@v-techuk.com