JOE'S TECH — WI-FI AND LAG CHECKLIST
1. Test with Ethernet when possible.
2. Restart modem and router.
3. Use 5 GHz or 6 GHz close to the router.
4. Pause large downloads and cloud backups.
5. Check whether lag is ping, packet loss, or low FPS.
6. Update network drivers.
7. Test another server or game.
8. Avoid placing the router behind metal or inside a cabinet.