Please tell me the recommended OS and browser.

We recommend that you view customer support in the following environment.
If you use it in an environment other than the recommended environment, or even under the recommended environment, you may not be able to use it correctly depending on your browser settings. note that.

Windows 10 or later
- Microsoft Edge latest version
- Google Chrome latest version
- Firefox latest version
Android
- Google Chrome latest version
iPhone
- Safari latest version

Is it possible to view frequently asked questions, construction / failure information, and make inquiries without logging in?

Yes, I can.
* Some are excluded.

Can anyone view the construction / breakdown information?

Yes, anyone can view it.
* Some are excluded.

What is a Customer Support ID?

This is the ID for logging in to this site.

Is it mandatory to register a customer support ID?

You can view the information in Customer Support without registering your Customer Support ID.
The customer support ID is required when setting the reception of construction / failure information emails.

What are the benefits of registering a Customer Support ID?

You can receive construction / failure information emails.
You can specify up to 3 delivery destinations for each customer support ID.

Are there any restrictions on the email addresses that can be registered as customer support IDs?

There is none. You can register your e-mail address as a customer support ID.
Customers with an OCN contract can log in with their OCN email address (xxx@xxx.ocn.ne.jp).

Can I log in with my OCN ID?

Yes, I can.

When I switch to customer support from another site (example: OCN My Page) that was logged in with my OCN ID, will my login status be inherited?

Yes, it will take over the login status.

Only the password can be changed.

We do not accept changes to your login email address, name, or date of birth.

I suddenly stopped receiving the construction / malfunction information email.

After logging in to Customer Support, please check the following settings from My Menu.
・Is the product you want to receive email notifications selected?
If the mailbox is full and you cannot receive it, or if you cannot deliver the mail for some reason, the delivery will be automatically stopped.
Please access to check the status.
https://support.ntt.com/en/mysupport/

If the delivery is stopped, perform the "Resume delivery" process.

If there are no problems with the above, please check the following.
・There is a possibility that emails are judged to be spam due to construction or malfunction due to changes in the security policy of the mail server. Is it sorted to the spam folder?

I haven't received the construction / failure information email to the delivery email address.

After logging in to Customer Support, please check the following settings from My Menu.
・Is the product you want to receive email notifications selected?
If no products are selected, the email will not be delivered.

・Is the day and time you want to deliver correctly selected?
Information posted on days other than the desired delivery day / time will not be delivered by email.

・Is the delivery email address correct? Is it unsubscribed?
If the mailbox is full and you cannot receive it, or if you cannot deliver the mail for some reason, the delivery will be automatically stopped.
Please access to check the status
https://support.ntt.com/en/mysupport/
If the delivery is stopped, perform the "Resume delivery" process.

If there are no problems with the above, please check the following.
・Have you rejected emails from "@ support.ntt.com"?
・Is the email judged to be spam due to construction or breakdown? Is it sorted to the spam folder?

I have additionally registered the delivery destination email address, but I have not received the temporary registration confirmation email.
If you try again, you will see a message that you have already registered.

Please try again after 30 minutes.