Wi-Fi doesn't work on the console or on the computer but on my mobile phones?

I can't connect to my Wi-Fi on the console or tablets, laptops, etc. It works on cell phones and on TV too. (TVs and cell phones are newer models. Could it be because the computers are a bit older? What could I try to make it work)

Is the WLAN network displayed on the devices?

Perhaps it was configured in the router in the meantime that no new device is allowed?

No

No I do not think so

It may be because there's no WLAN hardware in the PC. Is there an entry in the device manager for the network adapters called WLAN?

Yes, and what else I can say about it, it used to work with the Wi-Fi, it just stopped at some point and was gone.

Then the first time I would check the device manager