RT3501
Synology RT3501 DNS Resolution Error
Synology
DNS Resolution Error
MR-Series
92% fix rate
Cause
DNS cache poisoning attempt detected
Fix Steps
- Open router admin panel and navigate to DNS settings
- Change primary DNS to 8.8.8.8 (Google) or 1.1.1.1 (Cloudflare)
- Set secondary DNS to 8.8.4.4 or 1.0.0.1
- Flush DNS cache: ipconfig /flushdns (Windows) or sudo dscacheutil -flushcache (Mac)