Windows 10: How to rule in or rule out notebook wireless hardware problems

This notebook computer was connected using Ethernet for many months.
Today attempts to connect wirelessly initially failed.

Parts of the troubleshooting included running the windows network troubleshooter, downloading drivers, rebooting, working with a google fiber technician, etc.

For internet there is a google network box with fiberjack.
In one room there is a range extender.

For wireless the notebook can detect 4 signals: 2.4 and 5 from the google network box, and 2.4 and 5 from the range extender.

Google fiber troubleshooting included turning off the range extender and resetting both the network box and fiberjack.
With all of the steps the wireless displayed a yellow triangle with black exclamation mark in the lower right corner.
The yellow triangle would disappear when selecting a different signal and then reappear when a google fiber speed test was performed.

A second notebook was then tested and it was able to connect to all 4 signals without problems.

The conversation was completed with the Google technician and I was surprised to see the first notebook connected wirelessly. It has been connected to the range extender at 2.4 GHz and is next to the second computer.

I'd like to run through troubleshooting steps to determine whether there is or is not a hardware problem.

What are the tests, routine, and rigorous, that could rule in or rule out a hardware problem?
The Windows version is 1809.

:)

 

Problem with Network Adapter

You need to do some diagnosis:

1. Place your notebook next to the wireless router, to rule out interference
2. Connect your notebook with an Ethernet cable to rule out failure of the networking component.
3. Check to see if there is a physical switch on your PC that is turned off

 

Cortana Connected Home Scenes and Rules are not working; cannot create Rule or Scene

Cortana got updated and added "Rules" and "Scenes" under Connected Home section of the Notebook. Really cool, however both sections are not working - the "Create a scene" button does nothing and there is no button
to create a Rule.

 

Windows Firewall: Doesn't show blocking rules

Hello!

Today I've blocked all connections of a program by creating a outbound rule in Windows Firewall. However, I now wish to remove it. The problem: I can't find that newly created rule anywhere in the list. The rule does take an effect, since deactivating the
Firewall lets the program run properly. I can only see rules in the list that "allow" stuff, but not those who block things.

What I have tried so far:

- All filters set to "Show all" within the Firewall

- Created the same rule again, doesn't show up

- Created a rule that allows the program, shows up

Any solutions?