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G. How to Flush DNS Cache to Fix Network Issues

Flush the DNS Cache in Windows

If you're on a Windows machine—any Windows machine, even going back to XP and older—flushing the DNS requires a simple command. Click the Start menu and type "cmd." Right-click on the Command Prompt and choose Run as Administrator. Type ipconfig /flushdns In the Command Prompt window that appears. If successful, the Command Prompt will report back with "Successfully flushed the DNS Resolver Cache."

Flush the DNS Cache in macOS

Mac users need to run a quick Terminal command to flush the DNS cache, but the command differs depending on your version of macOS. First, press Command + Space to open Spotlight and search for "Terminal." Press Enter to open the program. Since macOS Catalina, you can type sudo dscacheutil -flushcache;sudo killall -HUP mDNSResponder into the Terminal and press Enter.

*Information from PCMag.com (3/24/25)