How to Change DNS Server on PC, Router, and ASIC Miner: Step-by-Step Guide

29/01/2026

A DNS server translates website addresses into numbers that computers understand.

When you type a website address like pool.kryptex.com into your browser, DNS converts it into a set of numbers (IP address) so your browser can open the site. Changing DNS helps access blocked websites or resources, including mining-related ones.

You can change DNS in Windows, Linux, macOS, routers, or miners in just a few minutes. Configure your router once, and all devices on your network will automatically get the new DNS. Try different servers and pick the one that makes your internet faster.

Changing DNS isn't a magic pill! If a website won't open even by IP (IP-level blocking), changing DNS won't help — you'll need a VPN. If it opens by IP, it's DNS blocking, and changing DNS will solve the problem.

Which DNS Should You Choose? Testing Performance and Speed

You need two IP addresses: primary and secondary (also called preferred and alternate). Here's a list of the most popular DNS servers:

  • Google Public DNS — 8.8.8.8 | 8.8.4.4
  • Cloudflare — 1.1.1.1 | 1.0.0.1
  • NextDNS — 45.90.28.208 | 45.90.30.208
  • Yandex DNS — 77.88.8.8 | 77.88.8.1
  • AdGuard DNS — 94.140.14.14 | 94.140.15.15
  • OpenDNS — 208.67.222.222 | 208.67.220.220

How to Test DNS Before Changing Settings

Open Command Prompt (Win+R, type cmd and press Enter) or PowerShell, then run:

nslookup pool.kryptex.com 8.8.8.8

pool.kryptex.com — the resource you're checking availability for.

8.8.8.8 — the DNS server you're testing with.

If the command returns an IP address, the DNS works and resolves this domain.

If your ISP returns an error or wrong IP, but the DNS returns the correct IP address, changing DNS will solve the problem.

How to Check DNS Speed Before Changing Settings

Open Command Prompt (Win+R, type cmd and press Enter) or PowerShell, then run:

Measure-Command {nslookup pool.kryptex.com 8.8.8.8}

pool.kryptex.com — the resource you're checking availability for.

8.8.8.8 — the DNS server you're testing with.

Compare response times from different DNS servers and pick the fastest. The one with the lower millisecond value is fastest and should be your choice.

Changing DNS on Windows

Press Win+R, type control and press Enter.

Open "Network and Internet" → "Network and Sharing Center" → "Change adapter settings".

Find your active connection: "Ethernet" for cable or "Wi-Fi" for wireless. Right-click → "Properties".

Select "Internet Protocol Version 4 (TCP/IPv4)" → "Properties".

Switch to "Use the following DNS server addresses" and enter:

  • Preferred: 8.8.8.8
  • Alternate: 8.8.4.4

Click "OK". Done.

Windows 10/11: Through System Settings

Press Win+I → "Network & Internet".

Select "Wi-Fi" or "Ethernet" → click your network name.

Find "IP settings" → "Edit" → select "Manual" → enable IPv4.

Enter DNS addresses:

  • Preferred: 8.8.8.8
  • Alternate: 8.8.4.4

Click "Save".

Changing DNS on Linux

Click the network icon in the top-right corner → "Network Settings".

Find your active connection → click the gear icon → open the IPv4 tab.

Switch DNS to "Manual" and enter addresses separated by commas:

8.8.8.8, 8.8.4.4

Click "Apply". Reconnect to the network.

Linux: Editing resolv.conf

Quick method, but settings reset after reboot.

Open terminal (Ctrl+Alt+T):

sudo nano /etc/resolv.conf

Delete old nameserver lines, add new ones:

nameserver 8.8.8.8 nameserver 8.8.4.4

Save: Ctrl+O, exit: Ctrl+X.

Linux: Permanent Setup via systemd

For modern distributions.

Open config:

sudo nano /etc/systemd/resolved.conf

Find the #DNS= line, remove # and add addresses:

DNS=8.8.8.8 8.8.4.4 FallbackDNS=1.1.1.1 1.0.0.1

Save and restart the service:

sudo systemctl restart systemd-resolved

Check:

systemd-resolve --status

Changing DNS in Router

The most convenient method: configure your router once — all devices at home automatically get the new DNS.

Open a browser and enter your router's address: usually 192.168.1.1, 192.168.0.1, or 192.168.100.1. The address is on the sticker on the bottom of your router.

Log in. Default passwords: admin | admin or admin | password. If these don't work, check the sticker.

Find the "Internet", "WAN", or "Network" section. The exact name depends on the model.

Find the DNS server fields. Uncheck "Obtain DNS automatically".

Enter addresses:

  • Primary DNS: 8.8.8.8
  • Alternate DNS: 8.8.4.4

Click "Save" or "Apply". The router will reboot — wait a couple minutes.

Where to Find Settings in Popular Routers

TP-Link: Network → WAN → DNS section

ASUS: WAN → Internet Connection → WAN DNS Setting → disable automatic

D-Link: Setup → Internet Setup → My Internet Connection

Xiaomi: Settings → Network Settings → DHCP Settings → DNS

Keenetic: Internet → Connections → select connection → IP Settings → switch DNS to "Manual"

Changing DNS in ASIC Miner

ASICs are configured similarly to routers.

Find your ASIC's IP address. Log into your router and check the list of connected devices. Or use Advanced IP Scanner software.

Open a browser, enter the ASIC's IP address. Log in: usually root | root or admin | admin.

Bitmain Antminer

Network → find DNS Server → enter addresses in DNS1 and DNS2 → Save

Reboot: System → Reboot

MicroBT Whatsminer

System → Network Setting → switch DNS to Static → enter addresses → save → reboot

Innosilicon

Settings → Network → enter DNS Server 1 and DNS Server 2 → save

Canaan AvalonMiner

Configuration → Network → DNS Settings → enter addresses → apply

Checking That DNS Changed

Windows: Open Command Prompt (Win+R, type cmd and press Enter) or PowerShell, then run:

ipconfig /all

Find the "DNS Servers" line — it should show your addresses.

Linux: open terminal:

systemd-resolve --status

or

cat /etc/resolv.conf

Online: visit dnsleaktest.com — the service will show which DNS you're currently using.

Flushing DNS Cache

After changing DNS, flush the cache so old addresses don't interfere.

Windows (Command Prompt or PowerShell as administrator):

ipconfig /flushdns

Linux (depending on system):

sudo systemd-resolve --flush-caches

or

sudo /etc/init.d/nscd restart

Reverting Everything Back

If something goes wrong, enable "Obtain DNS server address automatically" in settings. The system will revert to your ISP's DNS.

Need Help?

Have any questions, something is unclear, or you can’t connect?

Contact support — we're happy to assist!

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