Why is my internet slower at night?

Your internet is often slower at night because more people are using it at the same time. Evenings are peak hours, so streaming, gaming, video calls, updates, and smart devices can overload either your home Wi‑Fi or your ISP’s network.

Most common reasons

• ISP congestion: If speeds drop mainly around 7–11 p.m., your neighborhood may be crowded.
• Too many devices at home: 4K streaming, downloads, backups, and cameras add up fast.
• Wi‑Fi interference: Nearby routers can crowd the 2.4 GHz band.
• Old or overloaded router: Some routers struggle with lots of devices.
• Background updates: Phones, PCs, consoles, and TVs may sync at night.
• Possible traffic management: Some providers slow certain traffic during busy times.

What to do

• Test speeds in the morning, afternoon, and evening.
• Compare Wi‑Fi vs. Ethernet.
• Restart modem and router.
• Use 5 GHz or 6 GHz if available.
• Pause large downloads and backups at night.
• Check router/app data to see which devices are using bandwidth.

Quick read: If Ethernet is fine but Wi‑Fi is slow, it’s probably a home Wi‑Fi issue. If Ethernet is also slow only at night, it’s more likely ISP congestion.