ssl err_cert_authority_invalid

L1 Bithead

ssl err_cert_authority_invalid



I have added our selfsign SSL that we generated from a windows CA server for our district. When I add it to the firewall under the Device Cert and use it for the forward trust I am getting this error 


ssl err_cert_authority_invalid


I am not sure what could be causing this error 

Unless it is caused by the fact the domain is not listed in the Default Trusted CA in the firewall 


Any help would be great

Community Manager

Re: ssl err_cert_authority_invalid

is the selfsigned cert a CA itself, and is the workstation you used part of the domain and aware of the CA?

you may need to import the root cert onto the firewall to have a proper chain available to the client

Help the community: Like helpful comments and mark solutions
Reaper out
L1 Bithead

Re: ssl err_cert_authority_invalid

Yes the self signed is a CA as well 


The devices are chromebooks that are enrolled to our district and the cert has been added to the chrome devices via google admin

L1 Bithead

Re: ssl err_cert_authority_invalid

And I am using the cert as a Forward Trust 


but when I go to a site on a chromebook I get this SSL err 



L1 Bithead

Re: ssl err_cert_authority_invalid

I have also had my cert signed by an external authority and once that is in place I can not make that a CA or a forward trust 


So I am not sure what I am doing wrong 


Also when I update a cert in the firwall how long can it take for a device to see that 


Thanks again for all your help in advance

L7 Applicator

Re: ssl err_cert_authority_invalid


Can you verify on one of the chromebooks that the cert is acually pushing correctly. 



Should be able to see the cert that you pushed. 

Like what you see?

Show your appreciation!

Click Like if a post is helpful to you or if you just want to show your support.

Click Accept as Solution to acknowledge that the answer to your question has been provided.

The button appears next to the replies on topics you’ve started. The member who gave the solution and all future visitors to this topic will appreciate it!

These simple actions take just seconds of your time, but go a long way in showing appreciation for community members and the Live Community as a whole!

The Live Community thanks you for your participation!