Linux : Depending on the distribution, either sudo ufw should disable or sudo systemctl disable firewalld && sudo systemctl stop firewalldshould disable the firewall.
Remember to re-enable your firewall after troubleshooting to ensure your network is secure.
Antivirus
Antivirus software can sometimes block DNS traffic, causing connection issues. To check if antivirus software is causing the problem:
If the DNS issue is resolved, change your antivirus japan telegram data settings to allow DNS traffic.
For instructions on whitelisting DNS queries or configuring network protection settings, see your antivirus software documentation.
Additional advanced solutions
Resetting TCPIP refreshes the network stack, which can resolve configuration issues affecting DNS resolution. It can resolve many network-related issues, including DNS errors. Here's how to do it:
Windows : Open a command prompt as administrator and type netsh int ip reset, then netsh winsock reset. Then restart your computer to apply the changes.
macOS : Open Terminal and type sudo ifconfig en0 down, followed by sudo ifconfig en0 upreplace en0 with your network interface ID.
Linux : Open a terminal and use commands like sudo ifdown eth0 и sudo ifup eth0replace eth0 with your network interface ID.
Release and renew IP addresses: Requests a new IP address from the DHCP server, which resolves IP conflicts and improves connectivity. Releasing and renewing IP addresses can resolve DHCP-related issues and improve connectivity.