Even with a 100 Mbps internet connection, you can experience stream buffering if your local home network is suffering from wireless packets collision. WiFi Jitter vs. Speed High-definition streams require a stable, continuous flow of packets. WiFi jitter occurs when other home devices (like smart appliances or phones) send traffic bursts, causing packet delays. 1. Connect to the 5GHz Band Always connect your streaming TV or Firestick to your router's 5GHz band. The 2.4GHz band is highly congested and has trouble maintaining the high throughput needed for 4K. 2. Swap to Ethernet For absolute stability, connect a physical LAN cable to your TV box. This eliminates all radio interference, lowering local ping latencies. 3. Change to Cloudflare DNS Under your TV box network settings, change your DNS servers to Cloudflare (1.1.1.1 and 1.0.0.1) or Google (8.8.8.8). This ensures your player resolves our CDN edge node domain names rapidly.