Software⏱️ 3 min read📅 2026-06-19

How to Fix: Unable to allocate URBs error on USB Wi-Fi Netgear WNDA3200

Fix Unable to allocate URBs error on Netgear WNDA3200 USB Wi-Fi dongle with Ubuntu 12.04 and ath9k_htc driver.

Quick Answer: Update the ath9k_htc driver to the latest version, or try loading a specific firmware file that is compatible with your device.

📋 Table of Contents

  1. ⚠️ Common Causes
  2. 🛠️ Step-by-Step Verified Fixes
  3. ✨ Wrapping Up

The error 'Unable to allocate URBs' on the Netgear WNDA3200 USB Wi-Fi dongle is frustrating for users who are unable to connect to wireless networks. This issue affects Linux-based systems, particularly Ubuntu 12.04 with kernel 3.2.0-30-generic (x86_64).

This error can be caused by a variety of factors, including outdated firmware or incorrect configuration settings. In this guide, we will walk through the steps to resolve this issue and get your Netgear WNDA3200 working again.

⚠️ Common Causes

  • The primary reason for this error is that the ath9k_htc driver is unable to allocate URBs (USB Request Blocks) due to a mismatch between the firmware version and the kernel version. The firmware files in /lib/firmware may not be compatible with the current kernel, causing this issue.
  • Another possible cause is that the device is not properly initialized or configured. This can occur if there are issues with the USB connection or if the driver is not loaded correctly.

🛠️ Step-by-Step Verified Fixes

Update Firmware and Kernel

  1. Step 1: Update the firmware files in /lib/firmware to ensure they match the latest version compatible with your kernel. You can download the latest firmware from the Netgear website or a reputable third-party source.
  2. Step 2: Reboot your system after updating the firmware files. This ensures that the new firmware is loaded and recognized by the system.
  3. Step 3: Check if the issue persists after rebooting. If it does, proceed to the next step.

Update Kernel

  1. Step 1: Update your kernel to a version that supports the ath9k_htc driver. You can do this by running `sudo apt-get update` and then `sudo apt-get upgrade` in the terminal.
  2. Step 2: Reboot your system after updating the kernel. This ensures that the new kernel is loaded and recognized by the system.

✨ Wrapping Up

To resolve the 'Unable to allocate URBs' error on your Netgear WNDA3200, try updating the firmware files and kernel to ensure compatibility. If updating the firmware alone does not work, you can also try updating the kernel to a version that supports the ath9k_htc driver. By following these steps, you should be able to resolve the issue and get your wireless connection working again.

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