WiFi is no longer available to select: "Self-Assigned IP address will not be able to connect to internet". Why?
Looking under the WiFi icon at the top right of the screen, the name of my home network no longer appears.
Same for System Preferences / Internet / WiFi / Network Name.
If I select Joint Other Network and enter my home network name, security, and password, it says Network could not be found.
When I click on the Advanced button, under the WiFi tab my network name appears, the security is listed, and the Auto-Join box is checked.
This scenario is identical for all of my devices: Laptops, desktop, phones, and iPads
My service provider checked my modem/router remotely and said all is working as it should. I believe them because the computer I am typing on now is directly connected to it via an Ethernet cable and I am having no issues connecting to the internet.
Of course I have tried power cycling the computer I always use for system set up and maintenance (three times).
Of course I tried turning the WiFi off, then back on in the WiFi preferences window.
I also tried deleting my home network name from the list of available networks under the WiFi tab and adding it again.
his did not work.
My home network name still does not appear as an available network.
What do I need to do to make my home network name, which does appear in the Preferences / Internet / Wi-Fi / Advanced / Wi-Fi tab "Preferred Networks" window, become a selectable Network under the Preferences / Wi-Fi / Network Name selector field?
Currently the Wi-Fi "Location" is set to "Automatic" (there are no other locations listed).
The Wi-Fi tab in the Preferences / Network window is Yellow (I assume it should be green).
Immediately below Wi-Fi it says "Self-Assigned IP".
I don't know if this should be that way or not.
I don't know how to change it, or what I would change it to.
"Status" says ON
Immediately below "Status" it says "Wi-Fi has the self-assigned IP address [numbers] and will not be able to connect to the internet.
Why?
What should my IP address be?
Where would I change it?
My home network has been working just fine for a very long time (a couple of years at least).
Why would my IP address have changed?
Is my self-assigned IP address actually correct and some other setting is not set correctly?
I did not change my IP address.
Do I need to get a new one from my service provider AT&T?
Thank you for your help.
