Installing a certificate on a client workstation - If you’ve installed a certificate from a trusted source on a Security Center server, you must also install the same certificate on client workstations connected to that server. Otherwise, you encounter certificate errors. - Security Center 5.13

If you’ve installed a certificate from a trusted source on a Security Center server, you must also install the same certificate on client workstations connected to that server. Otherwise, you encounter certificate errors.

(Recommended) Install a certificate on a workstation without using Config Tool

1. Copy the certificate to the workstation.
2. Right-click on the certificate and click Install PFX.
   
3. In the Store Location section, select Local Machine and click Next.
4. In the File to import window, click Next.
   The File name field should already be populated, but if necessary, navigate to the certificate that you want to install.
5. Enter the password for the private key and click Next.
6. Select Place all certificates in the following store and browse to Trusted Root Certification Authorities. Click OK and then Next.
7. Click Finish to complete the certificate installation.

Install a certificate on a workstation using Config Tool

1. Log on to Config Tool.
2. Open the Network view task, select a server in the entity tree, and click the Properties tab.
3. In the Secure communication section, click View.
   
4. In the Certificate window, click Install Certificate.
   
5. In the Store Location section, select Local Machine and click Next.
6. Select Place all certificates in the following store and browse to Trusted Root Certification Authorities. Click OK and then Next.
7. Verify the information and click Finish. You should see a window stating that the import was successful. Click OK on both windows to close them.