Windows 10: Laptop suddenly cannot connect to wifi. What to do?

My wife's laptop suddenly stopped connecting to our wifi network. Every other device in the house 2 desktop pcs and 2 phones connects perfectly so the problem is obviously with her laptop and, I assume, with the in-built wireless adapter.I've tried several, brand new USB wireless adapters with the same results; cannot connect to this network. If it's not the in-built adapter that's faulty then it must be the settings that may have been changed as a result of a recent update?We've tried disabling and disconnecting the in-built adapter to, then, try the USB adapter on its own with zero result.

:)

 

can't connect with wifi

suddenly my laptop can't connect with wifi and the wifi name changes.
as an example

real wifi name: himax_y12

WiFi name listed on the laptop: hieax_y12

 

2 laptops suddenly cannot log onto wifi.

Have 2 Win-10 laptops that were doing fine - Nighthawk R700P set up many months ago. Suddenly both cannot log onto wifi. Going to list of available networks, choosing "home" and disconnecting and then reconnect does not help. Suggestions? Not the greatest computer wizards here.

Lenovo laptop wanted latest Windows update; upon rebooting everything seems fine. Other machine is actually an HP all-o\in-one, not actual laptop - but Win10 anyway. Will check if update is needed.

Now HP is OK as well. Problem began there yesterday and on Lenovo today but now both seem OK. Curiouser & curiouser as Alice said; sorry to have taken up your time.

 

Cannot connect to wifi with laptop

Hi,

We would like to isolate this issue that you're having right now. We suggest that you try the steps below:

• 
  Go to Network and Sharing Center.
  
• 
  At the right pane, click Change adapter settings.
  
• 
  Right click on your connection name (WiFi name) and Properties.
  
• 
  Click the Configure... button.
  
• 
  Go to Power Management tab.
  
• 
  Uncheck/disable the radio button for "Allow this device to turn off this device to save power".
  
• 
  Restart the PC (Important)
  

We will wait for your response.

Regards.