Applicable Products
- SSL Certificate
- myQNAPcloud
Overview
If you use a myQNAPcloud SSL certificate on your QNAP NAS, this article explains what is changing and what you need to do.
Your myQNAPcloud SSL certificate is issued by TWCA. To comply with international certificate standards, TWCA is updating its certificate infrastructure, and certificates issued under its old intermediate certificate stops being trusted on November 5, 2026 at 16:00 UTC (November 6, 2026 at 00:00 UTC+8).
What you need to do
Update the SSL Certificate app on your NAS to version 2.2.80 or later. After updating, a new certificate will be issued and installed automatically. No other action is needed.
If you do not update before the deadline, browsers will show a security warning, and services accessed through your myQNAPcloud domain may become unavailable.
This change does not affect the security of your NAS or your data, and there is no additional charge.
Frequently Asked Questions
Is my NAS affected by the TWCA intermediate certificate revocation?
Your NAS is affected if it uses a myQNAPcloud SSL certificate that:
- was purchased from QNAP for a domain such as
xxxx.myqnapcloud.com or xxxx.mycloudnas.com, and - was issued before November 1, 2026, 00:00 UTC.
The following certificates are not affected:
- Let's Encrypt certificates
- Certificates you uploaded yourself
- The default self-signed certificate on the NAS
To check your certificate, see How do I check in my browser whether my myQNAPcloud SSL certificate is new or old?
Which version of the SSL Certificate app do I need?
Update the SSL Certificate app to version 2.2.80 or later. The update is available for QTS, QuTS hero, QuTScloud, and QVP.
- Log in to your NAS.
- Open App Center.
- Find SSL Certificate.
- Click Update.
After I update the SSL Certificate app, how long does it take to get the new certificate?
After the update, your NAS automatically requests and installs a new certificate within 0 to 4 hours. You do not need to do anything else.
The wait time is random, so that many devices do not send requests to the certificate authority at the same time.
- Keep your NAS connected to the Internet during this time.
- When the new certificate is installed, web connections to the NAS may drop for a few seconds. This is normal.
If you need the certificate replaced urgently, contact QNAP Customer Service.
Why wasn't my myQNAPcloud SSL certificate replaced after I updated the SSL Certificate app?
The certificate is not replaced automatically in the following cases:
| Cause | Action |
|---|
| Your myQNAPcloud SSL license has expired. | Renew the license. |
| Your license has been moved to another NAS. | Make sure the license is assigned to this NAS. |
| Your NAS is not connected to the Internet. | Connect the NAS to the Internet and wait up to 4 hours. |
| The SSL Certificate app is older than version 2.2.80. | Check the version in App Center and update the app. |
If none of these apply and more than 4 hours have passed since the update, contact QNAP Customer Service.
How do I check in my browser whether my myQNAPcloud SSL certificate is new or old?
You can check two things in the certificate details:
| New certificate | Old certificate |
|---|
| Issue date | November 1, 2026, 00:00 UTC or later | Before November 1, 2026, 00:00 UTC |
| Authority Key Identifier (optional) | Starts with 93:44:9A:89 | Starts with F2:28:D4:F9 or 92:E7:FA:62 |
Checking the issue date is enough for most users. The Authority Key Identifier is a more precise check.
Before you start
- Open your NAS using your myQNAPcloud domain, for example
https://yourname.myqnapcloud.com. If you open it with an IP address, the browser shows a different certificate. - Use a private or incognito window, so the browser shows the certificate your NAS is using now.
Google Chrome or Microsoft Edge
- Open a new incognito window (Edge: InPrivate window). Press Ctrl+Shift+N on Windows, or Command+Shift+N on macOS.
- Enter your myQNAPcloud domain in the address bar, for example
https://yourname.myqnapcloud.com, and press Enter. - Click the icon on the left side of the address bar. Depending on the version, it looks like two sliders or a lock. If the address bar shows Not secure, click that instead.
- Click Connection is secure (or Your connection to this site isn't secure).
- Click Certificate is valid (or Certificate is not valid). In Edge, click the certificate icon in the upper-right corner of the panel.
Chrome: click the site information icon, then Connection is secure, then Certificate is valid

- The Certificate Viewer window opens. On the General tab, find Validity Period and check the Issued On date.
Chrome Certificate Viewer, General tab, showing the Issued On date under Validity Period

Optional: check the Authority Key Identifier
- In the Certificate Viewer, click the Details tab.
- Under Certificate Hierarchy, select the last item (your myQNAPcloud domain).
- Under Certificate Fields, expand Extensions and select Certificate Authority Key Identifier.
- Check the value under Field Value, for example
Key ID: 93 44 9A 89 ....
Chrome Certificate Viewer, Details tab, showing the Certificate Authority Key Identifier value

Mozilla Firefox
- Open a new private window. Press Ctrl+Shift+P on Windows, or Command+Shift+P on macOS.
- Enter your myQNAPcloud domain in the address bar and press Enter.
- Click the lock icon on the left side of the address bar.
- Click Connection secure (or Connection not secure), then click More information.
- In the Page Info window, on the Security tab, click View Certificate. A new browser tab opens. Each certificate in the chain has its own tab at the top of the page.
- Make sure the first tab (your myQNAPcloud domain) is selected.
- Under Validity, check the Not Before date.
- Optional: scroll down to Authority Key ID and check the Key ID value.
Firefox certificate page, showing Not Before under Validity and the Authority Key ID

Safari (macOS)
- Open a new private window. Choose File > New Private Window, or press Shift+Command+N.
- Enter your myQNAPcloud domain in the address bar and press Return.
- Click the lock icon in the address bar, then click Show Certificate.
- In the certificate list, select the last item (your myQNAPcloud domain).
- Click the arrow next to Details to expand it.
- Check the Not Valid Before date.
- Optional: scroll down to Authority Key Identifier and check the Key ID value.
Safari certificate window, showing Not Valid Before and the Authority Key Identifier

What the results mean
| What you see | What to do |
|---|
| Issue date is November 1, 2026, 00:00 UTC or later | Your certificate has been replaced. No action needed. |
| Issue date is before November 1, 2026, 00:00 UTC, and you have not updated the app | Update the SSL Certificate app to version 2.2.80 or later. |
| Issue date is before November 1, 2026, 00:00 UTC, and you updated the app less than 4 hours ago | Wait up to 4 hours, then close all private windows, open a new one, and check again. |
| Issue date is before November 1, 2026, 00:00 UTC, and you updated the app more than 4 hours ago | See Why wasn't my myQNAPcloud SSL certificate replaced after I updated the SSL Certificate app? |
Note
- The cut-off is November 1, 2026, 00:00 UTC. Browsers show the date in your computer's time zone, so the cut-off appears differently depending on where you are. For example, it is November 1, 08:00 in Taiwan (UTC+8) and October 31, 20:00 in New York (UTC-4). If the date shown is close to the cut-off, also check the Authority Key Identifier.
- The old and new intermediate certificates can have the same name, such as TWCA SSL Certification Authority. Do not use the issuer name to decide whether your certificate is new or old.
Are myQNAPcloud SSL certificates purchased after November 1, 2026, 00:00 UTC affected by this change?
No. myQNAPcloud SSL certificates issued on or after November 1, 2026, 00:00 UTC are issued under TWCA's new intermediate certificate and are not affected by the revocation.
We still recommend updating the SSL Certificate app to version 2.2.80 or later, so that your NAS installs the complete certificate chain and all apps can connect normally.
What happens if I update the SSL Certificate app after November 5, 2026, 16:00 UTC?
You can still update the app after the deadline. After the update, your NAS replaces the certificate automatically within 0 to 4 hours.
Until the new certificate is installed:
- Browsers will show a security warning when you connect to your NAS through your myQNAPcloud domain.
- Qfile, Qsync, and other apps that connect through your myQNAPcloud domain may fail to connect.
To avoid these problems, update before the deadline.
适用产品
- SSL Certificate
- myQNAPcloud
概述
如果您在 QNAP NAS 上使用 myQNAPcloud SSL 证书,本文将解释正在发生的变化以及您需要采取的措施。
您的 myQNAPcloud SSL 证书由 TWCA 颁发。为了符合国际证书标准,TWCA 正在更新其证书基础设施,其旧中级证书下颁发的证书将在2026 年 11 月 5 日 16:00 UTC(2026 年 11 月 6 日 00:00 UTC+8)后不再被信任。
您需要做什么
将 NAS 上的SSL 证书应用程序更新到版本2.2.80或更高版本。更新后,将自动颁发并安装新证书。无需其他操作。
如果您未在截止日期前更新,浏览器将显示安全警告,并且通过您的 myQNAPcloud 域访问的服务可能会变得不可用。
此更改不会影响您的 NAS 或数据的安全性,也不会产生额外费用。
常见问题
我的 NAS 是否受到 TWCA 中级证书吊销的影响?
如果您的 NAS 使用的 myQNAPcloud SSL 证书符合以下条件,则会受到影响:
- 从 QNAP 购买,用于
xxxx.myqnapcloud.com或xxxx.mycloudnas.com等域名,并且 - 在 2026 年 11 月 1 日 00:00 UTC 之前颁发。
以下证书不受影响:
- Let's Encrypt 证书
- 您自己上传的证书
- NAS 上默认的自签名证书
要检查您的证书,请参阅如何在浏览器中检查我的 myQNAPcloud SSL 证书是新还是旧?
我需要哪个版本的 SSL Certificate 应用程序?
将SSL Certificate应用程序更新到版本 2.2.80 或更高版本。此更新适用于 QTS、QuTS hero、QuTScloud 和 QVP。
- 登录到您的 NAS。
- 打开App Center。
- 找到SSL Certificate。
- 点击更新。
更新 SSL Certificate 应用程序后,需要多长时间才能获得新证书?
更新后,您的 NAS 会自动请求并安装新证书在 0 到 4 小时内。您无需执行其他操作。
等待时间是随机的,以避免许多设备同时向证书颁发机构发送请求。
- 在此期间,请保持您的 NAS 连接到互联网。
- 当新证书安装时,与 NAS 的网络连接可能会中断几秒钟。这是正常现象。
如果您需要紧急更换证书,请联系QNAP 客户服务。
为什么在我更新 SSL Certificate 应用程序后,我的 myQNAPcloud SSL 证书没有被替换?
在以下情况下,证书不会自动替换:
| 原因 | 操作 |
|---|
| 您的 myQNAPcloud SSL 许可证已过期。 | 续订许可证。 |
| 您的许可证已被移动到另一个 NAS。 | 确保许可证被分配到此 NAS。 |
| 您的 NAS 未连接到互联网。 | 将 NAS 连接到互联网并等待较多 4 小时。 |
| SSL 证书应用程序的版本低于 2.2.80。 | 在 App Center 中检查版本并更新应用程序。 |
如果这些都不适用,并且更新已超过 4 小时,请联系QNAP 客户服务。
如何在我的浏览器中检查 myQNAPcloud SSL 证书是新的还是旧的?
您可以在证书详细信息中检查两件事:
| 新证书 | 旧证书 |
|---|
| 签发日期 | 2026 年 11 月 1 日 00:00 UTC 或之后 | 2026 年 11 月 1 日 00:00 UTC 之前 |
| 授权密钥标识符(可选) | 以93:44:9A:89开头 | 以F2:28:D4:F9或92:E7:FA:62开头 |
对于大多数用户来说,检查签发日期就足够了。授权密钥标识符是更更精细的检查。
开始之前
- 使用您的myQNAPcloud 域名打开您的 NAS,例如
https://yourname.myqnapcloud.com。如果使用 IP 地址打开,浏览器会显示不同的证书。 - 使用隐私或无痕窗口,这样浏览器会显示您 NAS 当前使用的证书。
Google Chrome 或 Microsoft 端点
- 打开一个新的无痕窗口(端点:InPrivate 窗口)。在 Windows 上按Ctrl+Shift+N,或在 macOS 上按Command+Shift+N。
- 在地址栏中输入您的 myQNAPcloud 域名,例如
https://yourname.myqnapcloud.com,然后按Enter。 - 点击地址栏左侧的图标。根据版本不同,它看起来像两个滑块或一个锁。如果地址栏显示不安全,请点击它。
- 点击连接是安全的(或您与此站点的连接不安全)。
- 点击证书有效(或证书无效)。在端点中,点击面板右上角的证书图标。
Chrome:点击站点信息图标,然后点击连接是安全的,然后点击证书有效

- 证书查看器窗口打开。在常规选项卡中,找到有效期并检查签发日期。
Chrome 证书查看器,常规选项卡,显示有效期下的签发日期

可选:检查授权密钥标识符
- 在证书查看器中,点击详细信息选项卡。
- 在证书层次结构下,选择较后一项(您的 myQNAPcloud 域名)。
- 在证书字段下,展开扩展并选择证书授权密钥标识符。
- 检查字段值下的值,例如
Key ID: 93 44 9A 89 ...。
Chrome 证书查看器,详细信息选项卡,显示证书授权密钥标识符值

Mozilla Firefox
- 打开一个新的隐私窗口。在 Windows 上按Ctrl+Shift+P,或在 macOS 上按Command+Shift+P。
- 在地址栏中输入您的 myQNAPcloud 域名,然后按Enter。
- 点击地址栏左侧的锁图标。
- 点击连接安全(或连接不安全),然后点击更多信息。
- 在页面信息窗口中,点击安全选项卡上的查看证书。一个新的浏览器标签页将打开。链中的每个证书在页面顶部都有自己的标签。
- 确保选择了较高个标签(您的 myQNAPcloud 域名)。
- 在有效性下,检查不早于日期。
- 可选:向下滚动到授权密钥 ID,并检查密钥 ID值。
Firefox 证书页面,显示不早于在有效性下和授权密钥 ID

Safari(macOS)
- 打开一个新的隐私窗口。选择文件 > 新建隐私窗口,或按Shift+Command+N。
- 在地址栏中输入您的 myQNAPcloud 域名,然后按Return。
- 点击地址栏中的锁图标,然后点击显示证书。
- 在证书列表中,选择较后一项(您的 myQNAPcloud 域名)。
- 点击详细信息旁边的箭头以展开。
- 检查生效日期。
- 可选:向下滚动到授权密钥标识符并检查密钥 ID值。
Safari 证书窗口,显示生效日期和授权密钥标识符

结果的含义
| 您看到的内容 | 需要采取的措施 |
|---|
| 签发日期为 2026 年 11 月 1 日 00:00 UTC 或之后 | 您的证书已被替换。无需采取任何措施。 |
| 签发日期在 2026 年 11 月 1 日 00:00 UTC 之前,且您尚未更新应用程序 | 将 SSL 证书应用程序更新到版本 2.2.80 或更高。 |
| 签发日期在 2026 年 11 月 1 日 00:00 UTC 之前,且您在不到 4 小时前更新了应用程序 | 等待较多 4 小时,然后关闭所有私密窗口,打开一个新窗口,再次检查。 |
| 签发日期在 2026 年 11 月 1 日 00:00 UTC 之前,且您在 4 小时前更新了应用程序 | 查看为什么在我更新 SSL 证书应用程序后,我的 myQNAPcloud SSL 证书没有被替换? |
注意
- 截止日期为2026 年 11 月 1 日 00:00 UTC。浏览器会根据您计算机的时区显示日期,因此截止日期可能会因所在地不同而有所不同。例如,在中国台湾(UTC+8)是 11 月 1 日 08:00,而在纽约(UTC-4)是 10 月 31 日 20:00。如果显示的日期接近截止日期,请同时检查授权密钥标识符。
- 旧的和新的中级证书可能具有相同的名称,例如TWCA SSL Certification Authority。不要使用发行者名称来判断您的证书是新还是旧。
2026 年 11 月 1 日 00:00 UTC 之后购买的 myQNAPcloud SSL 证书会受到此更改的影响吗?
不会。2026 年 11 月 1 日 00:00 UTC 或之后签发的 myQNAPcloud SSL 证书是在 TWCA 的新中级证书下签发的,不受吊销影响。
我们仍然建议将 SSL 证书应用程序更新到版本 2.2.80 或更高版本,以便您的 NAS 安装完整的证书链,所有应用程序都可以正常连接。
如果我在 2026 年 11 月 5 日 16:00 UTC 之后更新 SSL 证书应用程序,会发生什么?
您仍然可以在截止日期后更新应用程序。更新后,您的 NAS 将在 0 到 4 小时内自动替换证书。
在安装新证书之前:
- 当您通过 myQNAPcloud 域连接到您的 NAS 时,浏览器将显示安全警告。
- Qfile、Qsync 和其他通过 myQNAPcloud 域连接的应用程序可能无法连接。
为避免这些问题,请在截止日期前更新。