Recently I stuck with the issue while login into MDM HUB 9.7 and the issue is:
ERROR: "java.lang.ClassNotFoundException: sun.io.MalformedInputException" while logging into the Hub Console in MDM 9.7
If you face the same error while logging to MDM Hub Console:
2015-01-15 13:17:15,841 [AWT-EventQueue-2] ERROR com.delos.cmx.console.serveraccess.ServerExceptionHandler - Unknown Exception:
This implies there is an issue with Java Runtime Environment which is used to access MDM Hub Console. I faced this issue when I tried login into MDM HUB 9.7.
When I checked my JRE in Java Control Panel I found I was using Java 1.8 which is probably not supported in MDM Hub 9.7. Hence, when I changed the JRE to Java 1.7, I was able to login successfully.
There were other issues like security which were preventing to further login. Those can again be configured by putting your MDM Hub Console URL in Java Security Exception List.
To access Java Control Panel in Windows 7, open Start, Type "Java Control Panel", it will show Java, click on it. Here you can add exception list under Security Tab and can change the Java Runtime Environment in Java Tab by clicking View button.