How to Change DNS Settings on Any Device or Router

Your internet connection relies on DNS — the Domain Name System — to translate human-readable website addresses into the IP addresses computers actually use. Changing your DNS is one of the most practical network tweaks available to everyday users, and it doesn't require advanced technical skills. But the process varies significantly depending on your device, operating system, and where in your network you want the change to take effect.

What DNS Does and Why You'd Want to Change It

Every time you type a URL into a browser, your device sends a query to a DNS server asking: "What's the IP address for this domain?" By default, your ISP (Internet Service Provider) handles these queries with their own DNS servers — which are sometimes slow, occasionally unreliable, and in some regions used to block or filter content.

Switching to a third-party DNS server can offer:

• Faster query resolution — some public DNS servers respond more quickly than ISP defaults
• Improved reliability — redundant infrastructure means fewer lookup failures
• Privacy features — certain providers encrypt DNS queries to reduce tracking
• Content filtering — family-safe or security-focused DNS options block known malicious domains

Common public DNS options include those offered by Google (8.8.8.8), Cloudflare (1.1.1.1), and OpenDNS — each with different priorities around speed, privacy, and filtering. The "best" one depends entirely on your geographic location and use case.

Two Places You Can Change DNS

Before diving into steps, it's important to understand where a DNS change takes effect:

Changing DNS at the router level means every device connecting through that router — phones, laptops, smart TVs — uses the new DNS automatically. Changing it on a single device leaves other devices unaffected.

How to Change DNS on Windows

1. Open Settings → Network & Internet
2. Select your active connection (Wi-Fi or Ethernet) and click Properties
3. Under IP settings, click Edit
4. Switch from Automatic (DHCP) to Manual
5. Toggle on IPv4, then enter your preferred and alternate DNS server addresses
6. Save and reconnect if necessary

On older Windows versions (7/8), this is done through Control Panel → Network and Sharing Center → Change adapter settings, then right-clicking your connection and selecting Properties → Internet Protocol Version 4.

How to Change DNS on macOS

1. Go to System Settings → Network (or System Preferences on older versions)
2. Select your active network connection and click Details
3. Navigate to the DNS tab
4. Use the + button to add DNS server addresses, removing old ones if needed
5. Click OK and then Apply

How to Change DNS on iPhone or iPad 📱

DNS changes on iOS are per Wi-Fi network, not device-wide for cellular:

1. Open Settings → Wi-Fi
2. Tap the (i) icon next to your connected network
3. Scroll to Configure DNS and tap it
4. Switch from Automatic to Manual
5. Delete existing entries and add your preferred DNS addresses

For cellular connections, iOS doesn't natively expose DNS settings — you'd need a VPN or a DNS-over-HTTPS profile installed via a configuration profile.

How to Change DNS on Android

Android varies more by manufacturer, but the general path on modern versions:

1. Go to Settings → Network & Internet → Private DNS
2. Select Private DNS provider hostname and enter a hostname (for DNS-over-TLS providers)

Alternatively, for standard DNS per Wi-Fi network:

1. Long-press your connected Wi-Fi network
2. Select Modify Network → Advanced Options
3. Change IP settings to Static and enter your DNS addresses manually

Some Android skins (Samsung One UI, MIUI, etc.) place these options in different menus. 🔍

How to Change DNS on a Router

Router interfaces vary by manufacturer, but the general process:

1. Access your router's admin panel — typically by entering 192.168.1.1 or 192.168.0.1 in a browser
2. Log in with your admin credentials (often printed on the router itself)
3. Navigate to WAN settings, Internet settings, or Advanced → DNS
4. Enter your preferred primary and secondary DNS addresses
5. Save and reboot the router if prompted

Some ISP-provided routers lock down DNS settings or push their own DNS via DHCP regardless. In those cases, changing DNS on individual devices may be your only option.

Variables That Shape Your Experience

Not every DNS change produces the same result. Several factors determine whether you'll notice a real difference:

• Your physical location — DNS server response times vary by region; a server fast in Europe may be slower in Southeast Asia
• Your ISP's existing DNS quality — if your ISP already runs fast, reliable DNS, switching may provide minimal speed benefit
• IPv4 vs IPv6 — some configurations require entering both IPv4 and IPv6 DNS addresses to work correctly across all traffic
• DNS-over-HTTPS or DNS-over-TLS — privacy-focused encrypted DNS requires compatible server hostnames and device support (Windows 11, Android 9+, and modern iOS versions support this natively)
• Static vs DHCP — on some devices, setting a static IP is required before manual DNS entries will stick

There's also the question of scope: a DNS change on your laptop won't protect your smart home devices. A router-level change covers everything but requires admin access and may interact with other network settings.

What the right approach looks like depends on which devices you need to cover, what your router allows, and what you're actually trying to achieve — whether that's speed, privacy, or content filtering.