How to Fix ERR_SPDY_PROTOCOL_ERROR? Try These Methods

Although Google Chrome is very useful, you can meet some errors such as ERR_SSL_BAD_RECORD_MAC_ALERT and ERR_EMPTY_RESPONSE when using Chrome. And this post focuses on ERR_SPDY_PROTOCOL_ERROR, so you can know how to fix ERR_SPDY_PROTOCOL_ERROR Chrome error after reading this post.

Method 1: Update Your Chrome

If your Chrome is not up to date, you can usually get rid of ERR_SPDY_PROTOCOL_ERROR by updating your Chrome. To do that, follow the steps below:

Step 1: Open Chrome at first, and then click the three vertical dots on the top right corner to choose Help > About Google Chrome.

Step 2: Wait for the scanning to finish and then click Update Chrome. Then wait for the new version to be installed.

Step 3: Restart your Chrome to see if ERR_SPDY_PROTOCOL_ERROR is fixed. If not, try the next method.

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Method 2: Flush DNS Using Command Prompt

If there is something wrong with your network, then you can also meet ERR_SPDY_PROTOCOL_ERROR. So in order to get rid of the error, you should flush DNS using Command Prompt. Here is a quick guide on how to do that:

Step 1: Type cmd in the search box, and then right-click the Command Prompt to choose Run as administrator. Click OK.

Step 2: In the Command Prompt window, type the following commands one by one, and remember to press Enter after typing every command.

ipconfig /flushdns
ipconfig /release
ipconfig /renew

Step 3: After the process is completed, close Command Prompt and then restart your browser to check if the error is gone.

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Method 3: Flush SPDY Sockets in Chrome

Sometimes, you can get rid of ERR_SPDY_PROTOCOL_ERROR by flushing SPDY sockets in Google Chrome. To do that, follow the instructions below carefully:

Step 1: Open your Google Chrome, copy and paste the following URL inside the address bar, then press Enter.

chrome://net-internals/#events&q=type:SPDY_SESSION%20is:active

Step 2: Click the down arrow in the top right corner and then choose Flush sockets.

Step 3: Restart your Chrome to check if the error is fixed.

If the error still exists, then do the following:

Step 1: Type chrome://net-internals/#sockets inside the Chrome address bar, and then press Enter.

Step 2: Click Flush socket pools.

Step 3: Restart your Chrome to see whether the error disappears. If not, try the next method.

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Method 4: Clear Browsing Cache

You can meet ERR_SPDY_PROTOCOL_ERROR because of overloaded browser cache, then you can try clearing Google Chrome browser data to fix the error. Here is the way to do it:

Step 1: Launch Google Chrome, then press the Ctrl, Shift and Delete keys at the same time to open the Clear Browsing Data window.

Step 2: Under the Advanced tab, set Time range to All time, check all the boxes, and then click Clear Data.

Step 3: After finishing the steps above, restart Google Chrome and then check if the error is fixed

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Bottom Line

This post focuses on ERR_SPDY_PROTOCOL_ERROR, so you can find four useful methods mentioned in this post. If you meet the error when you are using Google Chrome, try the methods.