I am getting issues with using a custom DNS resolver on my Magio Optic internet.
Sometimes during the day for a short period of time ranging from a few seconds to a few minutes I cannot resolve any domain names via Cloudflare's 1.1.1.1 DNS as the DNS request times out. The issue also occurs when using OpenDNS and a VPN service's DNS servers, so the issue is not with 1.1.1.1's servers, but interestingly enough Google's 8.8.8.8 DNS works fine. I've tested on multiple devices and this is a network wide problem.
'nslookup telekom.sk' during an "outage":
C:\Users\acer>nslookup telekom.sk
DNS request timed out.
timeout was 2 seconds.
Server: UnKnown
Address: 1.1.1.1
DNS request timed out.
timeout was 2 seconds.
DNS request timed out.
timeout was 2 seconds.
DNS request timed out.
timeout was 2 seconds.
DNS request timed out.
timeout was 2 seconds.
*** Request to UnKnown timed-out
Pinging 1.1.1.1 or OpenDNS works, as well as opening the 1.1.1.1 site in my web browser or any other IP address that has a website hosted on it.
Here is a traceroute to 1.1.1.1:
C:\Users\acer>tracert 1.1.1.1
Tracing route to 1.1.1.1 over a maximum of 30 hops
1 <1 ms <1 ms <1 ms 192.168.1.1
2 * * * Request timed out.
3 4 ms 4 ms 4 ms 213.81.252.23
4 * * * Request timed out.
5 12 ms 14 ms 10 ms 62.115.155.166
6 24 ms 24 ms 25 ms 62.115.119.186
7 10 ms 10 ms 10 ms 62.115.136.219
8 11 ms 11 ms 10 ms 80.239.194.86
9 10 ms 10 ms 10 ms 1.1.1.1
The traceroute looks the same during an "outage" and when everything is working correctly.
This started happening sometime last year, before that I was using 1.1.1.1 and it worked well. I want to keep using 1.1.1.1.
Any help would be appreciated.
