Hello, The error code suggest your browser does not support the same encryption ciphers as the ASAs ASDM. Assuming you have console access - Try typing in these commands and try again:ssl cipher default mediumssl cipher tlsv1 mediumssl cipher tlsv1.1...

Great you found a solution!My guess would be, that you had a NAT issue if you should come across issues like it again.The NAT in the ASA can overrule the routing table.

The short answer is yes, but there is not support for authenticating towards the local users database or DAP as the ASA have. You will need to have an external authentication method such as LDAP or radius.