DNS Resolution Failure — Gaming
What is this error?
Your PC cannot resolve the game server's domain name to an IP address. DNS failures prevent connecting to login servers, matchmaking, and game services.
Common causes
- DNS server down
- ISP DNS issues
- corrupted DNS cache
- DNS settings misconfigured
- router DNS forwarding broken
- antivirus DNS filtering
How to fix it
- Switch to Google or Cloudflare DNS
- flush DNS cache
- restart router
- reset network settings
Too many steps? Crashless can diagnose this automatically — checks your drivers, temps, VRAM, and 400+ known error patterns.
Get free AI diagnosis Detailed analysis
DNS failure means your PC can't look up where the game servers actually are — like having an address but no map. Games connect to services like login.example.com, and if DNS can't translate that to an IP, nothing works.
Fix it:
- Switch to a reliable DNS server RIGHT NOW: Network Settings > Change Adapter Options > right-click your connection > Properties > IPv4 > Use the following DNS: Primary 1.1.1.1, Secondary 1.0.0.1 (Cloudflare) or 8.8.8.8 / 8.8.4.4 (Google)
- Flush your DNS cache: open Command Prompt as Admin, run: ipconfig /flushdns
- Test if DNS is working: in Command Prompt, run 'nslookup google.com' — if this fails, DNS is definitely broken
- Restart your router — your router caches DNS too, and it might be serving stale/broken entries
- Reset your network stack: admin Command Prompt > netsh winsock reset, then netsh int ip reset, then restart your PC
- Disable DNS filtering in your antivirus — Norton, Kaspersky, and others intercept DNS and can break game connections
- If you're on a corporate or school network, their DNS might be blocking game servers intentionally. Try a phone hotspot to test
- Check if the game uses a specific DNS server that's down — some game launchers use their own DNS
- As a temporary test, try connecting with the server's IP address directly if the game allows it
When to seek help
If this error keeps happening after trying the fixes above, it may point to a deeper hardware or system issue. Consider professional help if:
- The crash occurs across multiple games or applications
- You see the same error after a clean Windows install
- Your PC is less than a year old (could be a warranty issue)
- You smell burning or hear unusual sounds from your PC
Or let Crashless do the deep analysis for you -- our AI checks drivers, temps, event logs, and 400+ known patterns automatically.
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