Fix occasional PRH test failures

Issue-ID: DCAEGEN2-1983
Signed-off-by: Remigiusz Janeczek <remigiusz.janeczek@nokia.com>
Change-Id: I7e0d60cc9648990dc3657be493c7a20b34a08a88
diff --git a/tests/dcaegen2/prh-testcases/resources/prh_library.robot b/tests/dcaegen2/prh-testcases/resources/prh_library.robot
index 1e6d310..212dfe0 100644
--- a/tests/dcaegen2/prh-testcases/resources/prh_library.robot
+++ b/tests/dcaegen2/prh-testcases/resources/prh_library.robot
@@ -57,7 +57,7 @@
     ${ves_event}=    Get Data From File    ${test_case_directory}/ves-event.json
     Ensure Container Is Exited    aai_simulator
     Set VES event in DMaaP    ${ves_event}
-    Wait for one of PRH log entries    90s    connection timed out: aai    Host is unreachable: aai
+    Wait for one of PRH log entries    90s    connection timed out: aai    Host is unreachable: aai    No route to host: aai
     [Teardown]    Ensure Container Is Running   aai_simulator
 
 Verify PNF re registration