Once you export the top level Root Certificate, follow the same steps to export the Intermediate certificate. Take defaults and follow the wizard to export the certificate:ĩ. Click on the “Details” tab and select, “Copy to File”:Ĩ. This is the first certificate we want to export.ħ. This will bring up the Root certificate as shown below, “Comodo RSA Certification Authority”.

Select the top level certificate, in this case, “Sectigo (formally Comodo CA)”Ħ. Click on “Certification Path” tab bring up the following:ĥ. This will bring up the certificate information:Ĥ. Click on the SSL padlock on your browser as shown below to bring up below window.In this example, I used as an example to work with certificates but this would be your VMware Horizon server, Citrix Storefront site, Citrix Netscaler/ADC, Microsoft Azure MFA site, etc….Steps to export certificate from browser: Assign the certificates to the device profile.Export the required certificates from a browser.I will cover the 3 step process to fix this. To do this, you can simply export from a browser, and then import on the device, generally through Wyse Management Suite (WMS) or even a USB key if you had to. This is easily fixed by installing both the missing Root and likely the Intermediate certificate. the Intermediate Certificate Authority certificate is also not installed on the deviceĮrror: SSL Certificate Authority is Unknown.the Root Certificate Authority certificate is not installed on the device.A common issue connecting to a VDI connection broker, i.e Citrix, VMware, etc., from Dell Wyse ThinOS or any thin client, is an SSL certificate error.

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