Hello
I'm using a RB951G-2HnD Router and just bought a chromecast audio.
The router (v6.35.2) is configured as a PTP Bridge and everything is ok for any of my device to connect on the Wifi network, but not for the chormecast audio...

It appears in the list of connected devices for few seconds, but connection is finally not validated and the chromecast doesn't finalize its configuration steps.

Does anyone had the same problem and find the solution?

Thanks for your help.

I have the same issue. Do you have any thoughts how to fix it?

What are your settings for multicast helper? Chromecast and Airplay, AFAIK, both operate using multicast and you need "full helper" enabled to get it to work reliably in my experience (AirPlay).