https://forums.whirlpool.net.au/archive/2627746 I had a similar issue - in the end i found this post that pointed me to checking the APN type settings and including a type called dun - this made the hotspot work again. mine was incorrectly set as fun...
Any chance you could report the issue found in this thread too? Or is it already an acknowledged issue somewhere? https://zentalk.asus.com/t5/zenfone-9/hotspot-problem/td-p/359184/page/2
@radiobends1869 Thanks for the comprehensive post and replying follow-ups it's saved me a bit more frustrating searching, like you I'm disappointed with such a flagship phone having such poor support, gonna try and get some social traction on this, o...