SSL VPN - Not working after upgrade to UTM 9

Hello together,

I upgraded from ASG 8.305 to UTM 9. When wantig to connect via SSL VPN I see the following error in the Log of the SSL VPN client which is updated, too:

VERIFY X509NAME ERROR: C=de, L=***, O=*** Mössner, CN=***, emailAddress=***, must be C=de, L=***, O=*** Mössner, CN=***, emailAddress=***

You can see that there is difference for the "O" field. The certificates were imported from the ASG installation where the SSL VPN worked fine.

When looking into the certificates on the UTM 9 and on the client, the "O" field looks good, there is no problem with vowel mutation.

So my question is: Which certificate is presented with the wrong information? Is it the certifacte of the SSL VPN client or is it the CA certificate of the UTM 9 and what can I do to correct the issue without resigning the HTTPS proxy certificate and all the other certificates?

Thank you

TheExpert