ChromeCast (3rd gen) - DD-WRT v3.0-r47528 - WRT3200ACM

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weavol
DD-WRT Novice


Joined: 28 Nov 2011
Posts: 15
PostPosted: Sun Oct 17, 2021 19:25    Post subject: ChromeCast (3rd gen) - DD-WRT v3.0-r47528 - WRT3200ACM Reply with quote
I have a Linksys Router -WRT3200ACM
Running DD-WRT v3.0-r47528 std (10/10/21)
ChromeCast (3rd Gen)

I'm having trouble getting ChromCast to work. It was working when I first got this router and was on DD-WRT firmware v3.0-r44715 - 20201103.

Most of my devices are 2.4 GHz so I'b basically using WLAN1 - the 2.4 GHz one.

When I do a factory reset of the ChromeCast device and try to set it up it seems like it's going to work. It gets the Chromecast device connected to my WiFi (WLAN2) then it tells me that my tablet cannot see the device:

Step 1: Disable Access Point/AP isolation ...
Step 2: Enable UPnP (Universal Plug and Play) ...
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kernel-panic69
DD-WRT Guru


Joined: 08 May 2018
Posts: 14224
Location: Texas, USA
PostPosted: Sun Oct 17, 2021 22:36    Post subject: Reply with quote
Quote:
Protection Mode
Available Settings: None, CTS, RTS/CTS

Default Setting: None

Recommended Setting: RTS/CTS* or None for AP modes, & RTS/CTS for client modes
Quote:
RTS Threshold
Available Settings: Enable, Disable

Default Setting: Disable (Enabled is @ 500 & way too low so set to 980)

Recommended Setting: Enable @ 2346 or Disable for AP modes, Enable (980 - 1500, or slightly lower if NEEDED) for client modes

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pbphoto
DD-WRT User


Joined: 29 Oct 2017
Posts: 258
PostPosted: Mon Oct 18, 2021 1:01    Post subject: Reply with quote
I had some Chromecast Audio devices that were PIA. If you have your 5ghz radio on and it has the same SSID as your 2.4ghz, and the chromecast sees the 5ghz radio as a marginal signal - slightly weaker than the 2.4ghz - then it will initially connect to the 2.4ghz radio, run fine for a little bit, then try to connect to the weaker 5ghz radio and stop working. In DD-WRT, I setup a wifi mac filter to prevent the chromecast devices from connecting to the 5ghz radios.
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