Airplay on iphone keep asking passcode

Hi

when I want to connect my iphone 11promax to sony x9000h tv with airplay, my phone ask passcode. As I enter the passcode, my phone just keep asking passcode and I cant connect to tv. I entered the passcode more than hundred times and I reset my connection setting on iphone and also restart my phone but nothing changed. What should I do? Is it possible that there is a problem with my wifi router?

thanks