My Hp stream laptop model 11 currently has a red at the wifi bar. It's been like that for months.

[Flower877788]

HP Stream Laptop Model 11-ah111wm

-No Wifi connection what so ever.

-Can't reset network or device.

-Tried troubleshooting 

[Lil_Boy_Blue]

Hi

In what respect or screen is the RED bar present?

If you have a WiFi adapter, fitted and not failed....

HOW DO I USE DIAGNOSTICS?

HP PC Hardware Diagnostics Windows is a Windows-based utility that allows you to run diagnostic tests to determine if the computer hardware is functioning properly. The tool runs within the Windows operating system in order to diagnose hardware failures. HP PC Hardware Diagnostics Windows comes pre-installed on new HP computers, but if not on yours, download here:- http://ftp.hp.com/pub/softpaq/sp93001-93500/sp93457.exe

 Please try this.

Then if that shows a result, please post it and we can then move on.

[Flower877788]

Hello, thank you for replying!!! 

I currently can't download the diagnostic on my Hp because it can't connect to wifi. There's a red X mark located on it. 

[Lil_Boy_Blue]

Hi

So it's one of these?

https://support.hp.com/gb-en/product/hp-stream-laptop-11-ah100-laptop-pc/21341662/model/22323485/man...

with this manual... http://h10032.www1.hp.com/ctg/Manual/c06198373

Options...

Starting HP PC Hardware Diagnostics UEFI
To start HP PC Hardware Diagnostics UEFI, follow these steps:
1. Turn on or restart the computer, and quickly press esc.
2. Press F2.

Buy a USB based WiFi...

https://www.walmart.com/c/kp/usb-wi-fi

which can be a long term solution.

Page 35 of the manual to replace the existing one.

Command Prompt?

C:\>ping 127.0.0.1

Pinging 127.0.0.1 with 32 bytes of data:
Ping statistics for 127.0.0.1:
Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),

Shows an adapter present.