Hi, Fryderyk. I'm sorry to hear you're having this problem, and I hope I can assist you to find a satisfactory solution.
Did you follow the steps as listed below?
Open the Settings app on your Windows 11 computer by pressing Win + I.
Click "Network & Internet" in the Settings window.
In the left sidebar, select "Mobile Hotspot".
In the "Share my Internet connection from" section, make sure your Wi-Fi adapter is selected. If it is not selected, click on the dropdown menu and choose your Wi-Fi adapter from the list.
Then click "Edit" under the "Share my Internet connection" section.
In the "Edit Network Information" window, select "Wi-Fi" from the "Network Adapter" drop-down menu.
Choose a network name (SSID) and password for your Wi-Fi hotspot.
Click "Save" to apply the changes.
Finally, enable the "Mobile Hotspot" option to enable Wi-Fi hotspot.
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