Web Filter looking for wrong certificate

Hi Rodrigo, Thanks for reaching out to Sophos Community.

Was this CA Certificate imported with the Private Key? And did you update the existing CA Certificate or imported the new certificate as new? 

Hi Devesh, 

I imported the CA certificate using the Private Key and first I deleted the expired certificate and then imported the renewed certificate.

If I change the desired certificate on General Settings inside Web Filter to use the SecurityAppliance and import this certificate manually on a computer, it works perfectly, but I want to continue using my internal CA on HTTPS decryption.

To confirm the certificate, If you open it in any of the windows machine, Goto Details > Basic Constraints. Does the subject type show as "CA" or does it show "End Entity"

Hello, sorry for the late reply, just to update this post, I got the problem solved cleaning up the old expired certificate on the CA console and then importing again. Thanks