Restart FireStick
Sometimes, a simple reboot can resolve the FireStick buffering issue. Restarting your device clears app caches, deletes unnecessary temporary files, and fixes bugs.
Here are the steps to restart your FireStick:
1. Click the Settings Gear icon on the right side of your FireStick home.
2. Open My Fire TV.
3. Select Restart.
4. Click the Restart button again and wait for your FireStick to restart.
Your FireStick will restart now, and the system will refresh.