WLC 2504 Airplay

[krob20041]

I currently have 5 apple TV's in one of my offices set up on the same wireless network/subnet as 2504 WLC controller, workstations(Mac and PC), etc... The problem is I can not see the apple TV from a PC using Air Parrot (I have tried a few others same result). iPhones, iPads, macs, can see them whether they are wireless or hardwired. I was able to get a PC to see the apple TV if I hardwire on both sides (but that is kinda missing the point IMO). I have the same set up in a different office that works no problem from either PC or Mac... 

Differences between offices 

office 1 WLC 2504 ver 7.6.120.0 multicast enabled with address 0.0.0.0 using 

 2 AIR-CAP2602I-A-K9 APs 

1 AIR-AP2702I-UXK9

office 2 WLC 2504 ver 8.1.102.0 multicast enabled with address 239.255.255.250 (wouldn't let me finish set up without picking a valid multicast address)(not sure if this the correct address to use)

4 AIR-AP2702I-UXK9 APs

Everything I have found regarding WLC 2504 /Apple TV it is the Mac side that can't see. I have the opposite problem... 

I am not very familiar with multicast but I know ATV/Airplay uses 224.0.0.251 multicast address. 

Everything else seems to work except the apple TVs from a PC... the only difference is the multicast address

I was considering rolling back the software to 7.6.120.0 (field recovery version) but wasn't sure if I could restore the config after the downgrade. 

I am relatively new to the Cisco and would appreciate any direction on this

thank you, 

[Ric Beeching]

Do not 'downgrade' the FUS at all. I think you were referring to the software anyway but just checking. Note: Cisco currently recommends 7.0.252.0 / 7.4.140.0/ 8.0.121.0 for the 2504s.

Running the same version of software is usually recommended through particularly if you want the same functionality across deployments.

You shouldn't need any layer 3 multicast because the devices are in the same subnet. Can you confirm the following is enabled: 

In the GUI under Controller select Multicast and confirm Enable Global Multicast Mode and Enable IGMP Snooping are ticked. You can also enabled MLD Snooping to see if the IPv6 discovery works.

If your Apple devices in that network can see the TV then I'd be inclined to think the PCs firewall may be blocking the discovery. Could you try this:

http://apple.stackexchange.com/questions/71847/how-to-stop-windows-firewall-from-blocking-bonjour-hostname-resolution

Cheers,

Ric

[krob20041]

I have opened up port 5353 on the windows machine per the article above...

Verified Enable Global Multicast Mode and Enable IGMP snooping is checked on controller

Still not showing up.. I even completely disabled the firewall on the PC

Another thought.....The switch that all access points are connected to is set to L3 mode, since all ports are Trunk ports could this be a problem? 

Important info I failed to mention (this was working prior to switching the wireless.. I previously had Apple Airports and all worked properly..

Thank you Ric for you response 

[Ric Beeching]

The layer 3 mode shouldn't affect it unless they wired/wireless clients are not sharing the same subnet/VLAN which you've said they are.

As the wired Apple devices are discovering the TVs but your windows machine is not then this indicates just a fault with the windows machines and not the network configuration.

There are some more ports to open suggested below but you've disabled the firewall and no luck..

http://help.airsquirrels.com/support/solutions/articles/1000107058-i-can-t-see-my-appletv-from-my-computer

I'd probably try to wireshark the traffic now to see what the windows pc 'sees'. Or another user has suggested trying airmypc which basically requires manual input of an IP..

https://discussions.apple.com/thread/6775570?start=0&tstart=0

As an aside, normally Access Points in local mode will be connected to switchports in access mode and locked down to the management VLAN used to connect back to the WLC. It sounds like you're using a flat VLAN for everything so this doesn't really matter.

[krob20041]

I will see what I can see with wireshark from the PC..

I have tried airmypc and 5kplayer.... I can hit it via IP with air parrot as well...just not optimal....

I will come in over the weekend and see what I can do... just seem odd it would only be PC's 

thanks again for your help!