I have been using 188.8.131.52 as my DNS server for the past few months.
However, this week I was unable to resolve a domain I regularly visit using 184.108.40.206 and the same domain resolves just fine using Google Public DNS (220.127.116.11)
This is the output when I perform an nslookup
C:\Users\carls>nslookup np.edu.sg 18.104.22.168 Server: one.one.one.one Address: 22.214.171.124 *** one.one.one.one can't find np.edu.sg: Server failed C:\Users\carls>nslookup np.edu.sg 126.96.36.199 Server: google-public-dns-a.google.com Address: 188.8.131.52 Non-authoritative answer: Name: np.edu.sg Addresses: 2600:1901:0:8a57:: 184.108.40.206
I have checked and made sure that there is nothing blocking the resolution of the domain in my local network.
Thanks for your time.