“Daytime is fine, but between 8 PM and 11 PM, videos suddenly start buffering…” “Online games lag and I can’t win!”
If you have these problems, even after restarting your router or buying a new one, the cause might be your internet connection type (road congestion).
This guide explains IPv6 IPoE — a congestion-free high-speed standard — in plain language.
Why Is It Slow Only at Night? The Toll Booth Effect
Traditional internet connections (called PPPoE) are like highway toll booths. Everyone must pass through a single authentication point to reach the wider internet. During off-peak hours, traffic flows smoothly. But at night and on weekends, cars (data) flood the toll booth, causing massive congestion. That is why your connection slows down in the evening.
The Solution: IPv6 IPoE
The new connection standard, IPv6 IPoE, is like taking a bypass road that connects directly to the internet. This road is wider and has no toll booths (authentication points), so speeds remain fast even during peak hours.
How to Check Your Current Connection
- On a Wi-Fi connected device, visit an “IPv6 connection check” site (search for “IPv6 check”).
- If you see “v6 Plus” or “IPoE” displayed, you are already using the new standard.
- If you see “PPPoE” or “IPv4 only”, you are still on the old, congested connection.
Two Requirements for IPv6 IPoE
1. Check Your ISP Contract
Most fiber optic services (like Docomo Hikari, SoftBank Hikari, Rakuten Hikari) support IPv6 IPoE by default, but you may need to enable a free option. Check your provider’s member portal for “v6 Plus” or “IPv6 Option.”
2. Use a Compatible Router
Even with the right contract, your router must support the new standard. Routers purchased in the last few years are mostly compatible, but routers over 5 years old may not be. Look for “IPv6 IPoE compatible” or “v6 Plus” on the packaging.
Summary: Check Your Contract Before Buying a New Router
“Wi-Fi is slow, so I bought an expensive router — but it didn’t get any faster!” This is often caused by the connection type, not the router. Start with these two steps:
- Check your current connection type
- Verify your ISP contract (IPv6 option)
Switching your connection type alone might make your evening video streaming dramatically smoother.