Step 1: Network Card * USB-to-Ethernet adapers won't work * Basic Realtek cards often fail * Recommended : Intel Pro/1000 Class Network Card (EXPI9301CT / 1-channel Intel NIC) Step 2: Direct Connection * Connect VTrack directly to your PC (skip any router or switch) * Check the lights on VTrack: Red light = Power ON Green light = Should be blinking Step 3: Set a Static IP Address * Go to Network Connections, right-click your Ethernet adapter, then select Properties * Select Internet Protocol Version 4 (TCP/IPv4), then click Properties * Enter these settings: IP Address: 172.16.1.100 (for right-handed) or 172.16.0.100 (for left-handed) Subnet Mask: 255.255.255.0 * Click OK * Disable the adapter, then Enable it again * Restart VTrack Toolkit Step 4: Adjust Network Card Settings * Open Device Manager, then go to Network Adapters * Right-click your network card, select Properties, then go to the Advanced tab * Change these settings: Jumbo Packet: 9014 Bytes Receive Buffers: Maximum value Transmit Buffers: Maximum value * Restart your PC Step 5: Firewall (If You Have One Enabled) * Allow LPGolfCalibrationTool.exe * Enable for both Private and Public networks Step 6: Power Cycle "The Hard Way" Since the green light is on but there's no activity on the PC side, the VTRACK's internal network interface might be hung. * Action: - Vtrack and PC Power down (Power Cable Disconnect) - Network Cable Disconnect - Wait at least 60 seconds - Network cable connection - Vtrack and PC Power On * Why: This drains the capacitors and forces the network handshake protocol to restart from scratch when you plug it back in. Step 7: Calibration Issus * Error Code "1001" Refer to the Troubleshooting Guide Steps 1 to 6 First, check the Network Card specifications in Step 1