Hi and thanks for reaching out. My name is Bernard a Windows fan like you. I'll be happy to help you out today.
I understand the issue you have, nothing to worry I am here to help, I know some of these steps are already done, you have just skipped it if you think it will have the same result.
Method 1. Restart Mobile hotspot services
Press Windows key + R then type in: services.msc then hit OK
Look for Windows Mobile Hotspot Service > Right click then click Restart or Start if it's not yet running.
Method 2. Change the network adapter’s settings
Go to Settings> Network & internet > Advanced network settings
Then select More network adapter options under Related settings.
Right-click the network adapter for your mobile hotspot to select Properties.
Select the Sharing tab on the properties window.
Deselect the checkbox for the Allow other network users to connect through this computer’s Internet connection option.
Hit OK and restart the PC
If none will work, the last option is to update Wi-Fi Driver:
-Go to Device Manager
-Expand the Network Adapters
-Look for the Wireless driver that was installed
-Right-click and Update
-Look for "Browse my computer for driver
-Let me pick drivers available drivers
-Choose an old driver and use it.
Let me know how it goes and I hope that helps.
Bernard
Independent Advisor