Why is upload slow but download is fine?
Upload can be consumed by cloud backup, cameras, video calls or malware; Wi‑Fi interference can also affect both directions differently. Test wired with background uploads paused.
WAN profile; live upload usage; camera/cloud sync; packet loss.
Escalate if wired upload remains below profile.
Show the technical detail
On a managed Wi-Fi plan
Use client-usage telemetry to identify heavy uploaders with consent.
On another provider's router
Check the package’s stated upload rate and provider test.
What to be careful of
Do not name another household user’s activity unless the account holder is authorised.
Where this comes from: Official · see the original source ↗ · Draft—technical review · checked 17 August 2026