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When Googling for the requirements of the Chromecast Audio, I get different results. Can anyone confirm if 5 GHz Wifi is required, or that it works with both 2.4 GHz and 5 GHz?
From https://support.google.com/chromecast/answer/6279377?hl=en:
Connectivity/Network: Wi-Fi 802.11 b/g/n/ac (2.4GHz/5Ghz)
From https://support.google.com/chromecast/table/6207416?hl=en&rd=2:
In order to set up your Chromecast, make sure have access to a 2.4 GHz (for Chromecast (1st gen) devices) or 5 GHz network (for Chromecast and Chromecast Audio).
Berend
Posted 2016-06-14T17:24:27.183
Reputation: 1 824
The second result should be interpreted as
2.4Ghz network for 1st Gen Chromecastand2.4Ghz or 5Ghz network for 2nd Gen Chromecast and Chromecast Audio. – Tom Yan – 2016-06-14T17:38:38.920