Most common causes
- Weak Wi‑Fi signal or interference
- Background traffic from cloud backups, video streaming, or another user
- Slow source server that cannot feed your connection fast enough
- Old hardware such as an outdated router
- Peak-hour congestion on the local network path
What to check first
- Test on Ethernet if possible.
- Pause other heavy traffic on your network.
- Try a different download source or a different time of day.
- Compare your real download against a speed test from the same device.