Working!
Firmware Version: 4.0.16.1.56.0.10.14.4
Model: MI424-WR
Revision: D
NOTE: Had to disable Wi-Fi MAC Authentication in order to communicate initially with Chromecast.
Wi-Fi Setup:
Security WPA2
SSID Broadcast: ENABLED
MAC Authentication: DISABLED (MUST BE DISABLED)
Wireless Mode: Mixed accepts 802.11b and 802.11g connections
Accessed router and navigated to ...
Advanced (Select "Yes" to proceed)
Selected "IGMP Proxy"
Selected "Host Multicast Filtering" (Left)
For each NON-STB IP Address under "Host IP Address" column, selected "Edit" in the Action Column
"Host Entry" Page appears
On "Host Entry" page checked the "IGMP Allowed:" box (left Max Channels Allowed = 0)
Selected "Apply"
After completing ALL Host IP Addresses, selected "Apply" at bottom of "Host Multicast Filering" page.
Android Device:
Installed Chromecast from Google Play
Discovered New Device
Set Name
Selected SSID for FiOS Wi-Fi
Entered FiOS Wi-Fi Password
Chromecast Connected!
Important Last step:
Accessed router and navigated to ...
Advanced (Select "Yes" to proceed)
Selected "IGMP Proxy"
Selected "Host Multicast Filtering" (Left)
For new Chromecast IP Address under "Host IP Address" column, selected "Edit" in the Action Column
"Host Entry" Page appears
On "Host Entry" page checked the "IGMP Allowed:" box (left Max Channels Allowed = 0)
Selected "Apply"
On "Host Multicast Filtering" page, selected "Apply"
Tested:
Opened Youtube on Android
Selected Cast and Connected to Chromecast Device
Played several videos
Sound AND Picture OK!
Glad to have this working, Didn't want to have to use a separae Wi-Fi device just for Chromecast (which I was doing prior to getting this working on the FiOS Router).
Hope this works for everyone!