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How to Fix ERR_QUIC_PROTOCOL_ERROR

Topic: Google Chrome Connection Errors | Status: Updated

What is this error?

The "ERR_QUIC_PROTOCOL_ERROR" indicates that there is a problem with the QUIC protocol, which is a transport layer network protocol designed by Google to make web connections faster. This error typically occurs when Chrome encounters issues retrieving data from a web server that utilizes QUIC.

How to Fix It

  1. Disable QUIC Protocol in Chrome:
    1. Open Google Chrome and type chrome://flags/ in the address bar and press Enter.
    2. In the search box, type "QUIC" to find the relevant settings.
    3. Locate "Experimental QUIC protocol" and set it to Disabled.
    4. Click the Relaunch button at the bottom to apply the changes.
  2. Clear Browsing Data:
    1. Click on the three vertical dots in the top right corner to open the menu.
    2. Navigate to More tools > Clear browsing data....
    3. Select the time range and check Cached images and files as well as Cookies and other site data.
    4. Click Clear data.
  3. Update Google Chrome:
    1. Click on the three vertical dots in the top right corner again.
    2. Go to Help > About Google Chrome.
    3. Allow Chrome to check for updates and install them if available.
  4. Restart Your Router:
    1. Unplug your router and wait for about 30 seconds.
    2. Plug the router back in and wait for it to fully restart.
    3. Reconnect to the network and try accessing the website again.
Disclaimer: This is an educational guide. We are not responsible for data loss. Always backup your system.

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