Error: Please Check Your Network and Certificate Settings

Problem

After changing the SSL certificate in the Basic Configuration (Expert Mode), you can no longer log in to the Server Manager. The Basic Configuration uses a certificate from your own CA. The following error message appears:

Cause

The automatic detection of the certification mode fails because the SAN of the certificate does not contain a DNS entry with the hostname of the server. As a result, the certificate check fails at login.

Resolution

Recommended: Use a certificate with the hostname in the SAN

Reissue the certificate from your own CA and add the hostname of the server as a DNS entry in the SAN. The first SAN entry must be identical to the Common Name (CN). Then store the new certificate in the Basic Configuration.

Alternative: Compare the fingerprint

Note: This is a workaround. For security reasons, we recommend correcting the certificate as described above.

1. On the Server Manager login screen, click Advanced Settings.
2. Set the certification mode to Compare server certificate fingerprint.

3. Select the certificate that is also stored in the Basic Configuration.

   
4. Log in again.