diff --git a/src/warden-client/lib/WardenClientReceive.pm b/src/warden-client/lib/WardenClientReceive.pm
index 556e7f4d1e1e335955e5c293e0070da3d55dc519..cf62bdaebb840faf642b1ef5a57d0607dc52a34e 100755
--- a/src/warden-client/lib/WardenClientReceive.pm
+++ b/src/warden-client/lib/WardenClientReceive.pm
@@ -91,7 +91,7 @@ sub c2s
 
   # check server response
   if (!defined $result) {
-    errMsg("Error: server returned empty response. Probably problem with used SSL ceritificates.");
+    errMsg("Error: server returned empty response." . "\n" . "Problem with used SSL ceritificates or Warden server at $server:$port is down.");
   } else {
     # deserialized response from server -> create SOAP envelope and data object
     my $response = $soap->deserializer->deserialize($result);
diff --git a/src/warden-client/lib/WardenClientSend.pm b/src/warden-client/lib/WardenClientSend.pm
index f0a7e879799b06532cc5e13017df99a01c0765bd..957f1e7fe15aaeb898f9e142ac23ee1b4a753b9f 100755
--- a/src/warden-client/lib/WardenClientSend.pm
+++ b/src/warden-client/lib/WardenClientSend.pm
@@ -86,7 +86,7 @@ sub c2s
 
   # check server response
   if (!defined $result) {
-    errMsg("Error: server returned empty response. Probably problem with used SSL ceritificates.");
+    errMsg("Error: server returned empty response." . "\n" . "Problem with used SSL ceritificates or Warden server at $server:$port is down.");
   } else {
     # deserialized response from server -> create SOAP envelope and data object
     my $response = $soap->deserializer->deserialize($result);
diff --git a/src/warden-server/lib/WardenReg.pm b/src/warden-server/lib/WardenReg.pm
index a114a2d2af77c97b952dc84d4b2621f4869f70c6..9a9478ffcf56abc1ff2be04ac02712949568b88b 100755
--- a/src/warden-server/lib/WardenReg.pm
+++ b/src/warden-server/lib/WardenReg.pm
@@ -86,7 +86,7 @@ sub c2s
 
   # check server response
   if (!defined $result) {
-    errMsg("Error: server returned empty response. Probably problem with used SSL ceritificates.");
+    errMsg("Error: server returned empty response." . "\n" . "Problem with used SSL ceritificates or Warden server at $server:$port is down.");
   } else {
     # deserialized response from server -> create SOAP envelope and data object
     my $response = $soap->deserializer->deserialize($result);
diff --git a/src/warden-server/lib/WardenStatus.pm b/src/warden-server/lib/WardenStatus.pm
index 808886241f628d6f3ba47da94bd1c08d10b27429..83c347bc90f287c72e372a882bde27cd40d13768 100755
--- a/src/warden-server/lib/WardenStatus.pm
+++ b/src/warden-server/lib/WardenStatus.pm
@@ -84,7 +84,7 @@ sub c2s
 
   # check server response
   if (!defined $result) {
-    errMsg("Error: server returned empty response. Probably problem with used SSL ceritificates.");
+    errMsg("Error: server returned empty response." . "\n" . "Problem with used SSL ceritificates or Warden server at $server:$port is down.");
   } else {
     # deserialized response from server -> create SOAP envelope and data object
     my $response = $soap->deserializer->deserialize($result);