macOS Error Code 100006: How to Fix It

Easy 10-20 minutes Medium Severity Verified June 2026
Summarize with ChatGPTSummarize with ClaudeSummarize with Perplexity Add as Preferred Source on Google
Error Code
Error 100006
Brand
macOS
Product Type
operating_system
Severity
Medium
DIY Difficulty
Easy
Estimated Fix Time
10-20 minutes
Error code 100006 appears when your Mac's App Store cannot establish a connection to Apple's servers. This typically indicates issues with your internet connection, incorrect date/time settings, or network configuration problems that prevent the App Store from communicating with Apple's services.
Ad

How to Fix Error Code Error 100006

  1. Check Your Internet Connection

  2. Verify Date and Time Settings

  3. Sign Out and Back Into App Store

  4. Restart Your Mac

  5. Reset Network Settings

  6. Check DNS Settings

  7. Clear App Store Cache

  8. Check Firewall and Security Software

    Remember to re-enable your security software after testing
Ad

When to Call a Professional

Contact Apple Support if the error persists after trying all steps, especially if other Apple services (iCloud, iTunes, etc.) are also not working. This may indicate a broader account or regional server issue that requires Apple's assistance.

Frequently Asked Questions

What causes macOS error code 100006?
Error 100006 is typically caused by internet connectivity issues, incorrect date/time settings, network configuration problems, or firewall settings blocking the App Store's connection to Apple's servers.
Why does my Mac show error 100006 even with good internet?
Even with working internet, error 100006 can occur due to DNS issues, incorrect system date/time, firewall blocking, or corrupted App Store cache. The App Store requires specific network protocols that may be blocked even when web browsing works.
Will fixing error 100006 affect my downloaded apps?
No, fixing this error won't affect your installed applications or their data. The solutions only address connection issues between your Mac and Apple's servers, not your local app installations.
Can VPN cause macOS error 100006?
Yes, VPN connections can sometimes interfere with App Store connectivity. Try disconnecting your VPN temporarily to see if the error resolves, then reconnect after testing the App Store.
How do I prevent error 100006 from happening again?
Keep your Mac's date and time set to automatic, maintain a stable internet connection, avoid blocking the App Store in firewall settings, and regularly restart your Mac to refresh network connections.

Related Error Codes