"Your Connection isn't private"

Our corporate IT partners have assured us that they have done all that can be done on our end. At this point, as long as the security certificate is improperly installed, the error will continue to repopulate. I just checked Digicert and the error is still showing. TLS Certificate is not trustedThe certificate is not signed by a trusted authority (checking against Mozilla's root store). If you bought the certificate from a trusted authority, you probably just need to install one or more Intermediate certificates. Contact your certificate provider for assistance doing this for your server platform.It appears your certificate is issued by GlobalSign - you can find the full instructions to properly install the intermediate certficate here: 
Install an SSL Certificate - Overview :: Install an SSL Certificate - Overview :: GlobalSign Support I hope that helps. I appreciate all the work this must take to run as a volunteer, so thank you for looking into this further for us. 

I have verified and I am not seeing any errors and the encryption is TLS 1.2

this is for a custom domain


and this is for toastmastersclubs.org

TLS Certificate expirationThe certificate expires October 13, 2023 (77 days from today)
Certificate Name matches www.catval.com
Subjectcatval.comValid from 15/Jul/2023 to 13/Oct/2023IssuerR3  
SubjectR3Valid from 04/Sep/2020 to 15/Sep/2025IssuerISRG Root X1  
SubjectISRG Root X1Valid from 04/Jun/2015 to 04/Jun/2035IssuerISRG Root X1
TLS Certificate is correctly installed 

TLS Certificate has not been revoked
OCSP Staple:Not Enabled
OCSP Origin:GoodCRL Status:Good 
TLS Certificate expirationThe certificate expires August 21, 2024 (390 days from today)
Certificate Name matches www.toastmastersclubs.org
Subject*.toastmastersclubs.orgValid from 21/Jul/2023 to 21/Aug/2024IssuerAlphaSSL CA - SHA256 - G4  
SubjectAlphaSSL CA - SHA256 - G4Valid from 12/Oct/2022 to 12/Oct/2027
IssuerGlobalSign Root CA
TLS  Certificate is correctly installed

Brian,

Our club president has verified as well that it's working normally.

Thanks.