If you are a NetShield customer, it may be that the version of the E-Guard security component you downloaded and installed is incorrect. Download the correct version and install it and you will be able to use it normally.

First log in to the China Construction Bank website to download the security component: /home/index.html, click "Download Center", and then download it according to the type of network shield (U-shield) you are using and the operating system of your computer. When using U-Shield, you should also pay attention to the version type of the browser. It can be used by IE8 and below. Some other browsers can use U-Shield, and some cannot. There are several versions of the E-Roadguard online banking security component: Simplified Chinese, Traditional Chinese and English, as well as a version suitable for Windows 7 64-bit operating system. Click on the corresponding version to download. If the computer is installed with Windows 7 64-bit operating system, please download the 64-bit version. For other operating systems, download the simplified Chinese version and install it. In addition, the E-Guard security component does not support Windows XP 64-bit operating system, and CCB U-Shield cannot be used on Windows XP 64-bit operating system. In Windows 7 system, right-click "Computer" on the desktop and open the "Properties" dialog box to see whether it is a 64-bit or 32-bit system. After downloading, save it to your computer, then "right-click" the saved file with the mouse and select "Open". Then the security component will be installed. After the installation is completed, you can use U-Shield (online banking) transactions normally.