Google Chromecast
From DD-WRT Wiki
To enable Google Chromecast to connect to a DD-WRT Wi-Fi network:
- open DD-WRT Control Panel
- navigate Administration > Commands
- click Edit under Firewall (in case there are already Firewall commands)
- in Command Shell > Commands, enter:
iptables -I FORWARD --destination 8.8.8.8 -j REJECT
iptables -I FORWARD --destination 8.8.4.4 -j REJECT - then click Save Firewall.
(Tested with Kong 22000++ on a Netgear WNDR3700v3.)