The server at www.ais.co.th can't be found because the DNS look-up failed. DNS is the network service that translates a website's name to its Internet address. This error is most often caused by having no connection to the Internet or a misconfigured network. It can also be caused by an unresponsive DNS server or a firewall preventing Internet from accessing the network.
Check your Internet connection.
Check any cables and reboot any routers, modems or other network devices you may be using.
Check your DNS settings.
Contact your network administrator if you're not sure what this means.
Allow Internet to access the network in your firewall or antivirus settings.
If it is already listed as a programme that is allowed to access the network, try removing it from the list and adding it again.
If you use a proxy server...
Check your proxy settings or contact your network administrator to make sure the proxy server is working.
Error code: ERR_NAME_NOT_RESOLVED