Hello,
Thank you for posting in Q&A forum.
According to your statement, you have tried to delete the managed network but still face the same issue.
I just want to add more steps after you delete the managed network:
1.Run CMD command:
netsh wlan stop hostednetwork
netsh wlan set hostednetwork mode=disallow
to disable the hostednetwork
2.Delete the virtual adapter if there's any:
3.Reset TCP/IP Stack by CMD command:
netsh int ip reset
netsh winsock reset
Then please create the new hosted network and see if it works.
Hope this answer can help you well.
Best regards,
Jill Zhou