Slow download speeds are often mistaken for poor IPTV service. In most cases, IPTV lag or buffering happens for one of two reasons: 1 Your internet connection is being shared with other users, which reduces the bandwidth available for your IPTV stream. 2 Your download speed is simply too low, especially when streaming high-quality content such as 1080p or 4K.Click the link below to test your internet speed, and be sure your Wi-Fi is turned on before starting the test.