Hello,
I was using Cloudflare’s 1.1.1.1 DNS resolver since it first came out, but a while ago I started getting issues with it.
Sometimes, usually around the evening (east Europe) when I try to visit a website, it just simply won’t load up because it can’t resolve the domain name’s IP address. These ‘outages’ usually don’t last long (~10-30 seconds) but they come back a few times.
While the ‘outage’ is ongoing I can ping IP addresses just fine, however using nslookup google.com outputs the following:
DNS request timed out.
timeout was 2 seconds.
Server: UnKnown
Address: 1.1.1.1
tracert 1.1.1.1 (normally):
Tracing route to one.one.one.one [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 4 ms 6 ms 4 ms 62.115.155.166
6 9 ms 9 ms 9 ms 62.115.119.186
7 9 ms 9 ms 9 ms prag-b3-link.telia.net [62.115.136.219]
8 18 ms 19 ms 18 ms cloudflare-ic-154352-prag-b3.c.telia.net [80.239.194.86]
9 15 ms 14 ms 14 ms one.one.one.one [1.1.1.1]
Trace complete.
tracert 1.1.1.1 (during outage):
Tracing route to one.one.one.one [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 st-static-bckb-23.213-81-252.telecom.sk [213.81.252.23]
4 * * * Request timed out.
5 3 ms 4 ms 4 ms 62.115.155.166
6 9 ms 9 ms 9 ms 62.115.119.186
7 15 ms 9 ms 10 ms prag-b3-link.telia.net [62.115.136.219]
8 17 ms 19 ms 17 ms cloudflare-ic-154352-prag-b3.c.telia.net [80.239.194.86]
9 14 ms 14 ms 14 ms one.one.one.one [1.1.1.1]
Trace complete.
1.1.1.1 help link (during outage): [Will provide as soon as I get an outage.]
My ISP is Slovak Telekom.
This led me to use 8.8.8.8 as secondary DNS (and 1.1.1.1 as primary) but I would like to use only Cloudflare’s DNS.
I think this problem is not on Cloudflare’s end, as using OpenDNS results in the same type of outages, so I will contact my ISP in the future as well, but I do not know what I should be saying to them, what is my problem exactly?
Any help would be valued.
