No DNS cache

[torreydale]

I had a similar DNS head scratcher when I connected to my personal OpenVPN Access Server.  There is something unusual with how Linux Lite handles DNS.  Perhaps firenice03's suggestion is on to something.  The workaround to my issue is below. 

What is the result you get from the following?:

Code:

sudo nano /etc/resolv.conf

If the nameserver you see is 127.0.0.1, change the line that states nameserver 127.0.1.1 to nameserver 8.8.8.8

Then see if your results aren't better.  If they are better, when you reboot, the nameserver may return to 127.0.0.1.  As a workaround for this, to make the change stick, you'll have to add 8.8.8.8 as an Additional DNS Server in your Network Connections.  You'll find the Additional DNS Server settings under the IPv4 Settings tab of Network Connections (Menu > Settings > Network Connections).

8.8.8.8 is a Google public DNS server, by the way.

P.S.  You may also try to see what happens if you manually add your OpenDNS server IP addresses to the Additional DNS server settings, in addition to or instead of 8.8.8.8.  Use commas to separate multiple domain name server addresses.

UPDATE:  It's good to see firenice03's suggestion helped.  Can you reboot and report back whether your issue stays resolved after a reboot?