TL-AC9978-E63

TP-Link TL-AC9978-E63 DNS Resolution Error

TP-Link DNS Resolution Error SafeStream
93% fix rate

Cause

Primary DNS server unreachable

Fix Steps

  1. Open router admin panel and navigate to DNS settings
  2. Change primary DNS to 8.8.8.8 (Google) or 1.1.1.1 (Cloudflare)
  3. Set secondary DNS to 8.8.4.4 or 1.0.0.1
  4. Flush DNS cache: ipconfig /flushdns (Windows) or sudo dscacheutil -flushcache (Mac)
  5. Restart router and connected devices
  6. Test DNS resolution: nslookup google.com

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