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A+® Certification. Welcome to CompTIA - The Computing Technology Industry Association. Speed Test. Why do I get a “socket error” message?

Speed Test

An error may result from having the speed test open in more than one browser tab or window. The test may fail to complete and display the following message: “A socket error occurred during the Upload test. Please try again later.” Broadband help » Speed Test. Test your download, upload and latency from a mobile phone up to optical fiber, and everything between.

broadband help » Speed Test

This test is pure HTML5 This test requires your browser's full attention for accurate results. Run the test when your network is quiet, and don't switch to other applications or change browser tabs during the test. A few Windows security and privacy software packages can block the test or slow the browser. You have a poorly written browser extension installed, there is missing functionality.