Google Chromecast™ lets you stream movies, music, and videos to your TV from your mobile device or personal computer. Recently, multiple complaints were reported that the Cast-enabled devices kill your Wi-Fi connection. The Wi-Fi bug works by letting devices beam too much data at a very high speed in a very short amount of time, thus, slowing down and even disrupting Wi-Fi connections. Routers from various manufacturers including the Belkin brand is susceptible to the issue.
For Android™ users experiencing Wi-Fi drops and performance issues with Chromecast, make sure your mobile device is up-to-date to the latest Wi-Fi fix for the Google Play™ services. The update should be rolling out to your Android devices automatically when your device detects internet connection, or you may visit the Google Play store to check the latest version.