DNS server problems usually show up as pages that won't load even though your internet connection works fine otherwise. Start by flushing your DNS cache, which clears out old or corrupted records your device may be holding onto; see our guide on what DNS flush does for the exact commands on Windows and Mac. If that doesn't help, switch to a public DNS server like Google's 8.8.8.8 or Cloudflare's 1.1.1.1 instead of your ISP's default, since ISP servers occasionally have outages. Restarting your router and modem can also resolve temporary DNS resolution issues by refreshing the connection. If problems persist across multiple devices on the same network, the issue is more likely with your ISP than with your own equipment.

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