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Can’t connect to WIFI anymore and don’t know why.It isn’t showing
[Re-Titled by Moderator]
Recommended settings for Wi-Fi routers and access points
Aside to your issue - profile showing Big Sur 11.2. That is out dated. There is a Big Sur 11.5. After reaching 11.5 there a Security update to 11.5.1
Make a New Location, Using network locations in Mac OS X ...
System Preferences>Network, top of window>Locations>Edit Locations, little plus icon, give it a name.
System Preferences>Network, click on the little gear at the bottom next to the + & - icons, (unlock lock first if locked), choose Set Service Order.
The interface that connects to the Internet should be dragged to the top of the list.
Sys Prefs>Network>highlight the Interface you're using>Advanced>TCP/IP>Configure IPv4: Using DHCP.
If using Wifi, instead of joining your Network from the list, click the WiFi icon at the top, and click join other network. Fill in everything as needed.
System Preferences>Network>choose interface>Advanced>Proxies Tab, make sure none are set, like for HTTP & HTTPS.
System Preferences>Network, unlock the lock if need be, highlight the Interface you use to connect to Internet, click on the advanced button, click on the DNS tab, click on the little plus icon, then add these numbers...
8.8.8.8
8.8.4.4
1.1.1.1
9.9.9.9
Apply.
In About this Mac>System Report>Network, does Wifi show up there?
Yes it does
Can’t connect to Wi-Fi with my MacBook
