Common Questions & Troubleshooting
Comprehensive guide to the most common DNS filtering issues: content not being blocked, misconfiguration, DNS hijacking, IPv6 conflicts, and more.
Read Guide
Clear DNS Cache (Windows & Mac)
Step-by-step instructions to flush the DNS cache on Windows (all versions) and macOS. Essential after changing DNS settings.
Read Guide
Clear DNS Cache (Browser)
Flush the internal DNS cache in Chrome, Firefox, Edge, and Safari to ensure your browser uses the new DNS settings.
Read GuideUbiquiti DNS Override
Fix DNS override issues on Ubiquiti devices where the built-in content filtering overrides your CleanBrowsing DNS settings.
Read GuideDebug DNS on ChromeBook
Debug and troubleshoot DNS filtering issues on Google ChromeBooks and ChromeOS devices.
Read Guide