1. Press + R on your keyboard
2. Type cmd on the Run window that just popped up then press OK
3. Enter the following commands one by one:

ipconfig /release

ipconfig /renew

ipconfig /flushdns

1. Press + R on your keyboard
2. Type cmd on the Run window that just popped up then press OK
3. Enter this command: ping -t website.com
(Replace website.com with a website/address you wanna check)

1. Open Control Panel
2. Select Network and Internet
3. Select Network and Sharing Center
4. Select Change adapter settings
5. Right click your connection adapter and select Properties
6. Locate Internet Protocol Version 4 (TCP/IPv4) then select Properties
7. Check Use the following DNS Server Addresses:
8. Input your preferred DNS Servers and Press OK
9. Locate Internet Protocol Version 6 (TCP/IPv6) then select Properties
10. Check Use the following DNS Server Addresses:
11. Input your preferred DNS Servers and Press OK

Recommended DNS Servers:

Cloudflare DNS
IPv4:
1.1.1.1
1.0.0.1
IPv6:
2606:4700:4700::1111
2606:4700:4700::1001

Google DNS
IPv4:
8.8.8.8
8.8.4.4
IPv6:
2001:4860:4860::8888
2001:4860:4860::8844

AdGuard DNS (with AdBlock)
IPv4:
94.140.14.14
94.140.15.15
IPv6:
2a10:50c0::ad1:ff
2a10:50c0::ad2:ff

AdGuard DNS (w/o AdBlock)
IPv4:
94.140.14.140
94.140.14.141
IPv6:
2a10:50c0::1:ff
2a10:50c0::2:ff