Google’s Chromecast Help Center lists the U.S. phone number for the Chromecast customer support team. The customer support team for the United States answers calls 24 hours a day, seven days a week.
The Chromecast Help Center contains a table that lists the customer support phone numbers for the countries in which Chromecast is available. The table also lists the languages in which customer support is available in each country. A separate column in the table displays the local times and the days of the week during which the customer support team answers calls.
The help center recommends that Chromecast customers reboot their devices and routers for a faster solution before calling the customer support team. To reboot your device, unplug it from the power source and keep it unplugged for 30 seconds. When the 30 seconds are over, plug your device back into the power source and turn it on. Follow this sequence of steps to reboot your Wi-Fi router.
You can use Chromecast media streaming to send videos from a laptop, tablet or phone to a television. Chromecast Audio lets you stream audio from your devices to your speakers. As of 2015, Chromecast supports iPhones, iPads, Android devices and laptops.