Methods/steps

Error "90 1" occurred.

SSL server requires a client certificate.

Error code: 90 1

This error is mainly caused by the system being unable to read the certificate.

First, please check whether there is a lock icon in the lower right corner of the screen. If not, please find the yellow lock icon of "China Post UKey Management Tool" on the computer desktop, and double-click to run. A yellow lock icon will appear in the lower right corner of the screen.

If the bottom corner of the screen is normal, the error will still appear in the lock icon. Please check whether you have plugged the ukey hardware into the usb interface of your computer. If the usb is plugged in correctly, double-click the yellow lock icon in the lower right corner of the screen, and the ukey management tool interface will appear. In general, the information of the merchant itself will appear in the "Equipment and Certificate List" on the left. If your message does not appear, please replace the usb interface of the computer. If there is still no information after replacing the usb interface, it is likely that the hardware of ukey is out of order. In this case, please contact the maintenance department.