A slow or unstable connection can prevent the initial handshake with Netflix's servers. Use a device on the same Wi-Fi network to visit fast.com , a speed-test tool created and hosted by Netflix. This gives you a real-world picture of your current connection to Netflix's own servers. If your speed is unusually low (below 5 Mbps for standard definition or 15 Mbps for HD), you'll need to address that with your ISP.
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Open an alternate online application (like YouTube) on the exact same streaming device. A slow or unstable connection can prevent the