Linkrunner At 2000 Firmware Update

Choose the downloaded firmware file ( .zip format) and follow the on-screen instructions.

If you want, I can produce step‑by‑step checklist text you can print for an on‑site update. linkrunner at 2000 firmware update

| Problem | Likely Cause | Solution | | :--- | :--- | :--- | | | Corrupted bootloader or power loss | Use the SD card bootloader method (Hold BACK + Power). If that fails, contact NetScout support for a recovery image. | | “SD Card Error” during update | Card too large (>2GB) or not FAT32 | Find an older, low-capacity SD card. Modern high-density cards are often incompatible with the AT 2000’s older controller. | | USB utility doesn't see tester | Missing Windows driver | The LinkRunner AT 2000 uses a generic CDC Serial driver. Force install the driver from the utility folder. | | PoE tests still inaccurate | Firmware updated, but calibration lost | The AT 2000 requires annual factory calibration for PoE accuracy. Firmware does not fix hardware drift. | Choose the downloaded firmware file (