Google DNS or Open DNS etc.

Use any Google or open dns.

Google DNS

Preferred: 8.8.8.8
Alternate: 8.8.4.4

OpenDNS

Preferred: 208.67.222.222
Alternate: 208.67.220.220

How to use:

1. Modify dns in your router normally would be found under internet or wan setup.

2. Modify in your local machine network, see images below for reference.

Google DNS

Preferred: 8.8.8.8
Alternate: 8.8.4.4

OpenDNS

Preferred: 208.67.222.222
Alternate: 208.67.220.220

For my reference:

Spectra DNS:

180.151.151.151

180.151.151.152