Android device cant connect to hotspot

Reposted, problem still exists with ios 15 and haven't got solution..

Hi. My android tablet won't connect to iphone hotspot via wifi. It connects with bluetooth, but the connection is so terrible that it doesnt work for my use.

It finds the hotspot and when I try to connect (after writing in password) "Connection to ***** has timed out, connection failed" It saves the connection and shows as saved but when tries to connect multiple times it says "wrong password" even it haven't been changed. After messing out the whole hotspot disappears from the wifi menu on my tablet, then it appears back when I reset network settings on iphone.

I have reseted both devices, changed names, passwords, updated and still problem exists. Same tablet has worked fine with multiple android devices and created hotspots.

Problem is either in the software or the phone, but does anyone have a solution or is there? This bug leads me to get a another device, but I cant be sure that does even it work with the hotspot..