Last updated: November 13, 2026
Is au Hikari down? User reports show no current problems with au Hikari
au Hikari is KDDI's fiber internet service for homes, run over its own lines with a choice of partner providers. Members check the area map, construction steps, bills and line state through au pages and My au. This page tracks connection faults, Wi-Fi trouble and slowdowns.
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au Hikari problems reported in the last 24 hours
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Most reported locations
Where au Hikari reports are coming from in the last 24 hours.
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au Hikari outage history
The live report status for au Hikari, updated as reports come in.
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au Hikari uptime and reports
Live report counts and the day by day record for the last 30 days.
User reports received in each period.
Last 30 days, day by day: 15 October 2026 to 13 November 2026
Green: up. Red: outage. Amber: some checks failed. Grey: no record yet.
The daily record builds from today as our checks run. Grey days have no saved record yet. A red day marks a confirmed outage.
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au Hikari on social media
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Posts on Bluesky saying au Hikari is down. Checked 13 November 2026, 5:50 AM PKT.
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Guides that can fix it
Step by step fixes for the problems people report most.
→ Is My Internet Down? How to Tell in Minutes
→ How to Restart Your Router the Right Way
→ How to Change Your DNS Servers
Is au Hikari down right now?
Most au Hikari down reports start with a whole street or building losing connection at the same hour. Checking the live au Hikari status here shows whether homes near you dropped together. A tight local cluster points to line damage or area work, while scattered reports suggest many small home faults.
KDDI posts area faults and planned work for its fiber network, and the au Hikari pages carry those notices. If your area is listed, your box lamps will agree with the notice.
Is au Hikari down for me or everyone?
Check the lamps on the ONU and gateway, then ask a neighbour on the same service if their line works. If their line is up and yours is dark, the fault is in your home run or box. If both homes fail together, ask is au Hikari down for me or for the whole street. A shared drop points outside.
ONU and home gateway lamps
The ONU turns the fiber signal into home internet, and its lamps report line health at a glance. A red or dark line lamp means the fiber side is down, and no setting change will revive it.
After a power cut, the boxes need a few minutes to resync in the right order. Power the ONU first, let its lamps settle, then start the gateway.
Wi-Fi names, keys and dead rooms
The gateway broadcasts your Wi-Fi name, and a missing name means the radio is off or the box is stuck. A name that shows but rejects the key points to a changed password or a mix-up between the two bands.
Evening drops and slow speeds
Speeds sag when the whole building streams at night, and Wi-Fi crowding makes it worse. A wired test tells the truth here: if a cable runs fast while Wi-Fi crawls, the line is fine. If both crawl, note the times, since a timed pattern is not a full au Hikari outage but still worth reporting. The same evening rush hits connected cars too, since an Audi parked at home leans on that Wi-Fi for app updates and remote checks.
Applications, construction and bills online
New contracts start with the area check, then construction booking, then the first bill inside My au. Each of those pages can fail on its own while your line runs fine.
Common au Hikari Problems and Fixes
Fiber faults follow a pattern: lamps first, then the gateway, then Wi-Fi. The fixes below walk that pattern for au Hikari homes. The last fix covers the evening drop that comes from a crowded room, not a broken line.
Restart the ONU, then the gateway
Unplug both boxes, wait a full minute, then power the ONU back on first. Let its lamps settle before you start the gateway. This order clears most sudden drops and post-outage sync faults.
Read the lamp colours before calling
A green line lamp means the fiber is live, while red or dark means the fault is outside your settings. Write down each lamp state before you contact KDDI support. The lamp pattern tells the engineer where to look first.
Test with a cable into the gateway
Plug a computer into the gateway with a cable and run a speed test. A fast cable result clears the line and blames Wi-Fi.
Move the gateway out of the corner
Wi-Fi hates corners, metal shelves and floors between it and your rooms. Move the gateway to an open, central spot and test the far room again.
Split the two Wi-Fi bands by name
Give the two bands different names in the gateway settings so you can pick per device. The slower band travels farther through walls, which suits distant rooms.
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Frequently Asked Questions
How do I restart my au Hikari line the right way?
Unplug the ONU and gateway, wait a minute, then power the ONU first and let its lamps settle. Only then start the gateway and give it a few minutes. Most sudden drops clear with that order alone.
Why does my connection drop every evening?
Evening drops usually come from crowding, either on the shared building line or on your own Wi-Fi channels. Test with a cable at the same hour to split the two. If the cable also drops, report the pattern with times.
What does a red lamp on the ONU mean?
A red lamp on the line side means the fiber signal is lost or the box cannot sync. Restart the ONU once and check the lamp again.
Can I check if my building can get au Hikari?
Yes, the area check on the au Hikari pages takes your address and shows if the service reaches your home. It also flags buildings that need extra construction work.
Where do I see my au Hikari bill?
Bills for the line sit inside My au with your mobile charges. The bill page shows the monthly total and its breakdown.
Does au Hikari need a provider as well?
Yes, the line pairs with a partner provider such as au one net, BIGLOBE or So-net for the internet side. Your provider choice affects mail and member pages, not the fiber itself.