> FIX APPLE TV STREAMING ISSUES
Media streaming issues can be traced to poor network performance, often linked to a weak Wi-Fi signal. If your Apple TV is located in a different room to your router, that’s likely to be the problem. If the device is connecting using the 5GHz band, try switching it to the 2.4GHz band, which performs better at longer ranges. Failing that, either add a range extender to boost the signal to where your Apple TV is sited or invest in powerline adaptors, which allow you to connect your devices to your network using Ethernet cable, carrying the connection between rooms using your electrical circuit. Wired connections are typically faster and more stable than wireless ones.
If your router is nearby and you’re convinced the signal should be strong enough, there may be congestion from other Wi-Fi networks — refer to the tip on the left to change the channel and fix this.
Your internet connection’s speed will also affect streaming from outside your local network. 4K video requires a lot of bandwidth — Apple recommends 25Mbps; with too little, Apple TV may stream at a lower quality. However, we’ve found that you can force it to use 4K by turning off Quick Start in Settings > Apps > iTunes Movies and TV Shows.