1. Check your connection and current setting
Confirm that internet works and note whether you use Wi-Fi or Ethernet. Windows can get DNS automatically through DHCP or use manual values. A VPN, company, school, or managed router may enforce its own DNS.
- Check your VPN documentation; it may control DNS while connected.
- DNS is different from your IP address, gateway, and download speed.
2. Choose a provider carefully
Twester offers Automatic/DHCP and public providers such as Cloudflare, Google, Quad9, OpenDNS, and AdGuard, plus custom values. Providers have different features and policies. Read their official documentation and choose for privacy, filtering, and compatibility.
- Filtering depends on the provider and configuration.
- Avoid DNS addresses from sources you do not trust.
3. Change DNS with Twester
Open Tools → Change DNS. Select the right adapter—or all only if you intend to change each one—choose a provider, and apply. Twester attempts to save the previous setting for restoration. Ask a network administrator before changing a managed network.
- Note the previous value, especially on managed networks.
- Changing one adapter may not change the others.
4. Check that it applied
Read DNS again in Twester or Windows Settings and open a few websites. Flushing the DNS cache refreshes locally stored lookups; it does not change the provider or speed up the whole connection.
- Check VPN and router settings too.
- Restore the previous setting if sites stop working.
5. Restore if needed
If websites or a work/VPN network stop working, use Twester’s DNS restore option. You can also return to Automatic (DHCP) in Windows when that is appropriate. Then check the connection again.
- Home networks can provide DNS automatically through DHCP.
- If problems continue, check your router or internet provider.
In summary
Change DNS for a clear reason, note the previous setting, and check the result. If there is no useful difference, Automatic (DHCP) is often simplest at home.