Hello
I have an hp 15 notebook running windows 10. It was fine last night and now this afternoon it cannot connect to any access point. It will connect to wifi for a moment then disconnects again. When i ran diagnostics it SAID "This computer was manually disconnected from [my home network.] I tried plugging it in and it says UNIDENTIFIED network and then invalid ip configuration. Ive tried it on two different networks same problem. Any help is greatly appreciated.

Edit: I checked the DEVICE manager all devices working PROPERLY. Also the computer will ping the gateway. And of course i tried restarting the modems etcIs this a laptop? How old is it?
A simple USB Wi-Fi adapter sells for about $10 an is an easy way to find out if the built-in adapter has failed.
Here is one such from Walmart:
https://www.walmart.com/ip/300Mbps-Mini-Wireless-USB-Wifi-Adapter-LAN-Internet-Network-Adapter-802.11n-g-b/40809384
Also try Amazon, Best-Buy or almost any electronics store.
Yeah its a laptop. Its only year or so old. Maybe ill give the adapter a try. Thanks for the reply.I would try some other things before running out and buying a USB wifi adapter.

It's possible that Windows installed a driver update for the wifi adapter that caused the problem. You could try looking in Updates history and seeing if such an update was installed and try to uninstall it.

Another option would be to go to the HP website and download the latest wifi adapter driver for Win 10 they have listed on their site.Did you run the networking troubleshooter?Thanks for responses. I will check the updates when i get home and report back. I did run diagnostics and its says the computer has manually disconnected from the access point. When i PLUG in ethernet and run it it says the router has an invqlid ip config but ive tried it on two different networks. I can post the diagnostic logs when i get home if you think it might be helpful.http://www.wikihow.com/Refresh-Your-IP-Address-on-a-Windows-ComputerThanks. As i said i tried unplugging both modems i tried it on. I also should have mentioned i tried to refresh the IP.When I run diagnostics it says a I was manually disconnected from the network. When I run diagnostics with the ethernet plugged in it says invalid ip configuration. The drivers are up to date.Turns out it was a corrupt tcp/ip stack so if anyone else experiences this look into that after you try everything else. Thanls for the help everybody