ITunes 10.5.2 airplay problem

Question

Since upgrading to iTunes 10.5.2, I have problems using airplay to connect to my hi-fi speakers.
When I enable them in iTunes I get the message
"Do you want the application "iTunes.app" to accept incoming network connections? "
immediately followed the message
"An error occurred while connecting to the AirPlay device "hi-fi". The network connection failed".
If I choose "allow" for the first message, deselect "hi-fi" in iTunes and select it again, it works!
This is becoming more annoying having to do this every single time.
I am using an Airport Xpress with airport utility 5.5.3 and Mac OS 10.6.8
Any advice is appreciated.
Nigel

Answer 1

My father has a perfectly good working 17 inch MacBook Pro, running on 10.4.8 which is the most modern version it's allowed to run, plus running iTunes 9.x and have the same problem. It does get tiring clicking each time, it does get annoying not being able to use airplay because it blames the firewall, and It gets annoying entering the administrate access and password each time.
When he selects the AirPort Express in question, that used to throw up the "not set in your firewall to allow AirPlay".
Clicking the firewall preferences button is useless, as it's already been given permission to allow incoming Internet connection, and clicking ignore makes it either crash , stop working or be inactive.
Turning firewall off to allow all connections defeats the point of having a firewall, but used to work most of the time, but doesn't seem to work now.
This coincides with him suddenly not being able to browse the Internet streams through the old iTunes radio button, but the ones that he did safe to his personal playlists play fine and he can enter custom stream URLs fine. So something on apples side must be stopping the use of the old radio button that allows you to browse through various genres of Internet music streams.
For the record there has been no iTunes or operating system updates for 10.4.8 for a couple of years now at the very least. So that is where our situation lies. A solution other than iTunes which no longer allows browsing.