Ensure the DNS Server is filled by the correct address, including the router address.To ensure you fill in the correct DNS Server address: You can add the other address given by the other ISP or DNS, such as OpenDNS or Google DNS. The DNS server address must be filled with the correct address, at least the one you find on the router. 6: Make sure the DNS Server address is correct It will allow your Mac to connect to the new Wi-Fi network.
If you are often changing the Wi-Fi network and making a particular location, ensure to reset it to the automatic settings. 5: Change Location to Automatic and Renew DHCD
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See also: How To Backup iPhone Photos on Mac Solutions For Mac Wi-Fi Problems Try the solutions listed below if your Mac won't connect to a Wi-Fi network. Wi-Fi issues can be caused by many factors, such as a Wi-Fi network scheme, the router settings, etc. Mac Wi-Fi Problems are one of the most common issues for Mac users.