Catch additional connect fail cases.

When fixing bug/1195910, some other failure
cases weren't considered (ie not authorized,
unreachable dest etc).

We should fix this up to handle the various
connection error states accordingly and also
add some hints to the log output to help
determine where to look in case of failure.

Fixes bug: 1201592

Change-Id: Ib099c7af705e7c49be4d0f723c8a20262c942e7f
(cherry picked from commit 5edbc4eb9a6b0d50612fffb6261850c80515b483)