Cisco Asdm Java couldn’t trust Server
Yes, yes, I know you should only use the CLI. But if you are running the latest version of Java and can’t login to the ASDM you can do the following to fix that.
Browse via a web browser to the site and download the cert file.
Open the Java console. Start > Configure Java.
Add the internal site to the exception list.
Click manage certs.
Install it to the following.
Secure type area, Signer CA, and Trusted Root.
Now you should stop getting the error message and be able to connect via the ASDM.
javax.net.ssl.SSLHandshakeException: java.security.cert.CertificateException: Java couldn’t trust Server