HTTPS/SSL Certificate Error DLG_FLAGS_INVALID_CA

Hello all, I'm trying to work this out, but I will need some help from you guys.

 

I'm running apache2 on Debian 9, the apache web server is behind an f5 big Ip that does load balancing and manage the SSL encryption and decryption for the apache web server.

 

The certificate is installed on F5 but when I try to reach the web page I get this error:

 

"Your PC doesn’t trust this website’s security certificate. The hostname in the website’s security certificate differs from the website you are trying to visit. Error Code: DLG_FLAGS_INVALID_CA DLG_FLAGS_SEC_CERT_CN_INVALID "

 

in the certificate the domain assigned is *.mysite.com

 

on the apache2 web server I've tried the following:

 

in apache2.conf I've tried to define ServiceTokens FULL SecServerSignature ";

 

In /enabled-website/000-default.cof: ServerName mywebsite.com ServerAlias *.mywebsite.com

 

but still throwing that error, could you please help me with this?

 

Regards, Valerio