After upgrade to iOS 13 from 12.4, I noticed that personal hotspot isn't working anymore over Wi-Fi (via USB is ok).
Tested on two computers with Win7.
The PC can connect to Wi-Fi, but no valid IP (IPv4) is assigned and no connection is working to internet.
Best Answer
I found a workaround which works fine for me.
While connected to the hotspot open a cmd and enter the following commands:
After that, the client gets instantly a correct IP-Adress from the DHCP.