Airplay not working over wireless, works over ethernet?

Hi, for the benefit of any trawlers out there with an EE Bright Box 2 router, log into the router and disable 5gHz band. Highly unlikely you will ever need it. Reopen itunes (reboot PC if you wish), and all should be well again.

• Check that your wired and wireless networks are the same network and you get the same IP addresses from both.
• Check that your new router isn't transmitting on a channel that is used by other networks in your area.

I got a similar issue.

Itunes 10.5.1.42 on windows 7

2x Airport Expresses v7.6 connecting to WLAN in straight client mode

My iphones and ipad can all connect to the airport express airplay, works fine. But itunes basically never sees them. I think if I reboot everything including router then they come up, but when I restart my computer they disappear out of itunes again.

I have no fierwalls or network restirctions internally. win7 firewall is off.

I have tried resetting airport express to factory and re confinguring. no change.

I can't be sure but it seems to have dropped off sicne the update to itunes 10. rather than the last airport express update.

Presumably the ethernet cable is unplugged? It disables wi-fi when connected.

I would recommend restarting all devices including computer and router if you've not already tried this.

AC

Thanks. Ethernet is unplugged. Restarting temporarily fixes until the computer is restarted, as I mentioned.

Sorry, reply was directed to supraru. I had read your post and interestingly noted that restarting helped.

When they disappear from itunes does Airport Utility (if Windows has one) still see the Expresses?

These issues are always tricky to pin down - may be related to software/software bug, unlikely to be security software as you say firewall is off and they would probably just never appear if something was port blocking.

Is computer sleeping and maybe getting a different IP address when it wakes for some reason?

Anything that could be interfering with the wi-fi like microwave, cordless landline phones?

In my experience AppleTVs have always been poor at re-establishing iTunes connections once it has dropped for some reason - almost like a bug whereby if itunes fais to see an AppleTV (or perhaps an Express) that it has connected to, that it never subsequently rechecks the connection is available again until a restart.

If itused to work and nothing has changed apart from the iTunes version it's quite a coincidence.

AC

Thanks supraru, that was my exact problem. I turned off WMM Support and restarted the ATV2 and my macbook's networking and it fixed it.

I was having similar issues with not being able to use AirPlay over my wireless network. It was working only when connected to my Ethernet. All hardware devices were configured to access the same network. THANK YOU to all of you who posted on this discussion because it helped me figure out that it was an issue with a setting on my Linksys E1000 router.

If you have a router similar to mine then log into the administration set up area. This is usually defaulted to having to direct connect via Ethernet (I recommend leaving it this way.) Under Wireless/Advanced Wireless Settings, make sure that AP Isolation is set to "Disabled." For some reason mine was set otherwise even though disabled is the default. This immediately fixed the problem and iTunes recognized the hardware (Airport Express & AppleTV) to broadcast to via AirPlay.

Couple tips I found to be useful:

• Wireless Channel Width should be 20MHz only. I tried setting it to Auto (20MHz or 40MHz) but it caused everything to just stop and the Internet didn't even want to connect. Not sure why but I just figured that if 20MHz was good for all then it was good for me.
• AppleTV has a hard time communicating with a non-Apple router via Wireless-N. When I disabled Wireless B/G on my router I could no longer see my Apple TV. This was under the N Transmission Rate drop down menu in Advanced Wireless Settings.
• In the same Advanced Wireless Settings module, make sure to leave Basic Rate to "default", for some reason the network get's confused and pauses when you have it on anything else. This get's annoying when listening to music or watching a video.
• When you are working on your router and changing settings or going from page to page, expect your device connectivity to be choppy. I don't know why this happens but would guess that maybe the router is taking a second to see if any changes were applied to notify the user before switching to the next page.
• My WMM Support is still enabled and all devices are working just fine.
• Under QoS (Quality of Service) in my router, I went ahead and Internet Access Priority to see if giving iTunes a High priority would allow me less lag time. I added both Quicktime and Skype to the Summary list of Categories to prioritize. We'll see if this helps since I'm messing with it as I write this.
• Last but not least, I have 50MB of download via my Internet cable service provider. Figured people should know this so that we can rule out speed.

I sincerely hope this helps some of you out and again thank you for leading me to the right solution. Cheers!