Does Chromecast Audio work with Airport Extreme?

I'm contemplating purchasing Chromecast Audio so I can play music on my stereo system. However Google says Airport Extreme on default settings has not been verified to work with Chromecast. They suggest setting the router mode to 'Using DHCP and NAT' and turning 'Connection Sharing' to 'Off (Bridge Mode)'.

I'm suspecting this will cause problems for me because my ISP is ATT, which has provided me with a Pace 5031NV modem-router combination. As I understand it, if I put the Airport Extreme into bridge mode it will in effect be downgraded to the much more limited capabilities of the Pace router.

If anyone has experience using Chromecast Audio with an Airport Extreme or Time Capsule, especially successful experience, I would greatly appreciate hearing from you.

Thanks,

MacBook Air, OS X El Capitan (10.11)

Posted on Nov 3, 2015 6:35 AM

17 replies

EricWeir Author

Level 1

66 points

Nov 8, 2015 1:37 PM in response to Bob Timmons

Thanks, Bob. Among the sources I was relying on were ATT employees posting on the ATT forums. See the post by DavidCS at <https://forums.att.com/t5/Third-Party-Devices/AT-amp-T-Modem-Router-Apple-Airpor t-Extreme/td-p/3607835> for a capsule version of the instructions for disabling the wireless on an ATT router and letting a third party modem do the routing. And another one by the same individual at <https://forums.att.com/t5/Third-Party-Devices/How-to-Bridge-PACE-5031-NV-to-3rd- Party-Router/td-p/3612175> to the effect that the instructions for the Pace 5031nv are the same as/similar to those of one of their 2Wire modems.

I thought I had been able to get my system set up this way, in particular with the Airport Extreme doing the routing. Alas, errors showed up pretty quickly. When I set routing to DHCP and NAT I got "double NAT" errors. When I set it to DHCP Only I got the message saying "sharing a range of IP addresses requires manually configuring your WAN IP address" that I asked for help with yesterday.

It may be that even doing this will not enable the AE to do the routing, but there are a lot of people out there who have been able to do just that. Not surprising given that ATT will only allow clients to use their modem/routers, which are not state of the art.

Bob Timmons

Level 10

185,138 points

Nov 8, 2015 2:16 PM in response to EricWeir

DMZ mode on the AT&T modem/router.....even if it is setup according to the links...... will not accomplish anything for you. By that, I mean that you will still have a Double NAT error with this type of setup if you want to run the AirPort in router mode.

Off (Bridge Mode)....in my opinion....(and Apple's)..... is the correct setting for the AirPort when you have a modem/router upstream on the network. Apple's AirPort Utility will tell you this when you run the setup.

At this point, unless you have a different question, I don't think that I can help further on your issue. There are some really smart folks on the forum who really know networking, so if I have missed something, or provided incorrect information......I'm sure that they will post promptly.

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Does Chromecast Audio work with Airport Extreme?