OCN outages and problems
User reports, last 24 hours
170 reports in total, counted in 15-minute windows
In the last hour, 6 problem reports came in for OCN, against about 12 at this time on a usual day. Over the last 24 hours there were 170 reports. Most recent reports were about broadband internet (44%) and WiFi (33%). The last spike in reports was 19 h ago and lasted 18 min. These are user reports from Japan, where most people report OCN problems.
- NormalClose to the usual level24 h · 170 reports
- ElevatedMore than 1.5 times the usual levelNone in this chart
- OutageMore than twice the usual level and far above the day's averageNone in this chart
- Usual levelWhat a usual day sees at that timeAbout 12 an hour now
In the past 24 hours, 170 user reports came in for OCN. Counting only the 15-minute windows with a spike big enough to count as an outage, that comes to 100.00% uptime for the day.
The busiest 15-minute window had 9 reports, about 23 hours ago. That stays below our outage threshold, so it doesn't count as downtime.
OCN in November 2026
- Problem reports in November (since 3 November)
- 246
Monthly report for November 2026
What went wrong
What people said was wrong in recent problem reports for OCN.
Share of 27 recent reports that said what was wrong.
OCN problem spikes, last 30 days
Since 3 November, OCN had no outage spikes, but 3 periods of elevated reports. The longest lasted 48 min, on 4 November.
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Elevated reports
Wed 4 Nov, 07:44–08:02Lasted 18 min10peak reports
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Elevated reports
Wed 4 Nov, 03:31–03:52Lasted 21 min11peak reports
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Elevated reports
Wed 4 Nov, 00:55–01:43Lasted 48 min16peak reports
A spike is a sharp rise in problem reports from users, kept exactly as this page showed it at the time. This history starts on 3 November 2026. Monthly reports for all services
How to fix OCN not working
OCN is up on our end, so if it won't work for you, the problem is most likely on your side. Work through these in order:
Your browser tries to reach ocn.ne.jp over your own connection, right now. Nothing is sent to us or stored.
Reload and restart
Reload the page (Ctrl+F5, or Cmd+Shift+R on a Mac), or fully close the app and open it again.
Try another connection
Switch between Wi-Fi and mobile data. If it works on one and not the other, the problem is your network, not OCN.
Update the app
Install the latest version from the App Store or Google Play. Old versions can stop connecting after a server-side change.
While OCN is down: what to use instead
- Mobile data from another carrier Use a separate docomo, au, SoftBank, or Rakuten Mobile line for basic web access if your home connection is the part failing.
- Phone tethering If your mobile line still works, tether a laptop or tablet so you can reach account pages, mail, or work sites.
- Mail app already set up If OCN webmail will not load, try the mail app on your phone or computer if the account is already configured there.
- Public Wi-Fi A trusted Wi-Fi spot can cover short tasks like checking messages or paying a bill while your own line is unusable.
Problems at the same time as OCN
Since 3 November, all 3 of OCN's spikes in problem reports overlapped a spike at another service.
When several services get problem reports at once, something they share, such as a cloud host or a network, can be the real cause. Matching times alone do not prove it.
Most often at the same time
- USPS3 times
- Archive of Our Own3 times
- Minecraft3 times
- Freenet3 times
- Banamex3 times
- Brightspeed3 times
How many of OCN's spikes overlapped one of theirs.
During the latest spike
OCN: Wed 4 Nov, 07:44 to 08:02
- USPS, outage,3 Nov 11:10 to 10:09
- Archive of Our Own, outage,3 Nov 18:00 to 09:51
- Minecraft, outage,3 Nov 19:40 to 07:55
- Klarmobil, outage,05:57 to 23:27
- National Lottery, outage,05:57 to 12:42
- Fifth Third Bank, outage,06:27 to 09:27
- Play, outage,06:42 to 10:57
- Bluesky, outage,06:57 to 08:12
26 more services. Red dot: outage. Amber dot: elevated reports.
A spike is a sharp rise in problem reports from users, as the live pages showed it. Times are Central European time.
When people report OCN problems
The busiest hour for reports about OCN is 02:00 to 03:00 Central European time, and the busiest day is Wednesday.
By hour of the day
- 00:00 to 01:00: 0.51 reports on an average day
- 01:00 to 02:00: 0.56 reports on an average day
- 02:00 to 03:00: 0.95 reports on an average day
- 03:00 to 04:00: 0.65 reports on an average day
- 04:00 to 05:00: 0.36 reports on an average day
- 05:00 to 06:00: 0.23 reports on an average day
- 06:00 to 07:00: 0.31 reports on an average day
- 07:00 to 08:00: 0.38 reports on an average day
- 08:00 to 09:00: 0.28 reports on an average day
- 09:00 to 10:00: 0.71 reports on an average day
- 10:00 to 11:00: 0.48 reports on an average day
- 11:00 to 12:00: 0.21 reports on an average day
- 12:00 to 13:00: 0.07 reports on an average day
- 13:00 to 14:00: 0.18 reports on an average day
- 14:00 to 15:00: 0.14 reports on an average day
- 15:00 to 16:00: 0.27 reports on an average day
- 16:00 to 17:00: 0.17 reports on an average day
- 17:00 to 18:00: 0.03 reports on an average day
- 18:00 to 19:00: 0.03 reports on an average day
- 19:00 to 20:00: 0 reports on an average day
- 20:00 to 21:00: 0 reports on an average day
- 21:00 to 22:00: 0 reports on an average day
- 22:00 to 23:00: 0.17 reports on an average day
- 23:00 to 00:00: 0.09 reports on an average day
By day of the week
- Monday: 0 reports on an average Monday
- Tuesday: 0.09 reports on an average Tuesday
- Wednesday: 44 reports on an average Wednesday
- Thursday: 5.5 reports on an average Thursday
- Friday: 0 reports on an average Friday
- Saturday: 0 reports on an average Saturday
- Sunday: 0 reports on an average Sunday
Each bar is the average number of user reports in that hour, or on that day of the week, from 29 days of reports since 5 October 2026. The busiest bar is highlighted. Spikes in reports are left out, so one outage does not set the pattern.
OCN IP address, servers and network
Checking ocn.ne.jp from our server…
Service updates from @ocntop
No posts about problems from @ocntop in the last 14 days. The latest is from .
Contact OCN support
Tip: OCN doesn't list a public status page that we know of, so its help centre and the report chart on this page are the best places to check.
How we track OCN
The status on this page comes from user-submitted problem reports for OCN, counted in 15-minute windows over the last 24 hours. Each window is compared with the normal level for OCN, so a few complaints on a quiet day don't trigger anything, but a sudden jump well above normal does.
When reports climb well above normal, the status here changes to partial outage or major outage and the chart moves with it. OCN doesn't publish a public status page that we know of, so user reports are often the quickest sign that something is wrong on their side.