Hardware⏱️ 2 min read📅 2026-05-30

How to Fix: What leads to a "DMA timeout, restart DMA controller" error after updating a network driver?

Quick Answer: The error could be caused by a misconfigured or incompatible network driver. Try rolling back to the previous version of the MIOP driver and check for any firmware updates on the Mediatek MT7620A CPU.

📋 Table of Contents

  1. 🛠️ Step-by-Step Verified Fixes
  2. 🎯 Final Words

To resolve the "DMA timeout, restart DMA controller" error after updating a network driver on your Mixtile Cluster Box with an MT7620A CPU and a Mediatek chipset, follow these steps:

🛠️ Step-by-Step Verified Fixes

Method 1: Disable and Re-enable the Network Interface

  1. Step 1: Open a terminal on your cluster box and run the command ip link set miop0 down to disable the network interface.
  2. Step 2: Run the command ip link set miop0 up to re-enable the network interface.

Method 2: Update the BIOS and UEFI Firmware

  1. Step 1: Check with the manufacturer for any BIOS or UEFI firmware updates available for your cluster box.
  2. Step 2: Follow the instructions provided by the manufacturer to update the BIOS and UEFI firmware, ensuring that all drivers are updated after the update process is complete.

🎯 Final Words

If none of the above steps resolve the issue, it may be necessary to contact a qualified technical support specialist or the manufacturer's support team for further assistance.

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