When try to access the Blackberry Administration Console it shows Page can not be displayed. You check and found that Blackberry Administration Service is stopped.
When you start  and try again same thing happens.  

There is a simple workaround:   There is a port conflict between DNS service and BAS.  Stop DNS client and Server services.  Start  Blackberry Administration Service and let it start fully.  After that start DNS services. It should work.