diff --git a/src/main/java/org/caosdb/server/ServerProperties.java b/src/main/java/org/caosdb/server/ServerProperties.java
index 5135dcbe0a1c5dd63b2bd4faa82a4cf2123ba138..dd761180782804caa457f2d913d0c5d5111109a7 100644
--- a/src/main/java/org/caosdb/server/ServerProperties.java
+++ b/src/main/java/org/caosdb/server/ServerProperties.java
@@ -163,8 +163,6 @@ public class ServerProperties extends Properties implements Observable {
   public static final String KEY_PID_SERVICE_ADMIN_HANDLE = "PID_SERVICE_ADMIN_HANDLE";
   public static final String KEY_PID_SERVICE_ADMIN_PRIVATE_KEY = "PID_SERVICE_ADMIN_PRIVATE_KEY";
 
-  public static final String DOIP_PORT = "DOIP_PORT";
-  public static final String DOIP_TARGET_ID = "DOIP_TARGET_ID";
   public static final String KEY_AUTHENTICATION_TRUSTED_JWKS_DIR =
       "AUTHENTICATION_TRUSTED_JWKS_DIR";
 
diff --git a/src/main/java/org/caosdb/server/doa/DoipServer.java b/src/main/java/org/caosdb/server/doa/DoipServer.java
index b425e96e08b40cb110c725f9d4b6d17aba54537b..ee18045a32e223e4ad8be2d29bff5586a9d21141 100644
--- a/src/main/java/org/caosdb/server/doa/DoipServer.java
+++ b/src/main/java/org/caosdb/server/doa/DoipServer.java
@@ -112,6 +112,8 @@ public class DoipServer implements DoipProcessor {
       String serviceId = CaosDBServer.getServerProperty(ServerProperties.KEY_DOIP_SERVICE_ID);
       String address = CaosDBServer.getServerProperty(ServerProperties.KEY_SERVER_BIND_ADDRESS);
       start(address, port, serviceId);
+    } else {
+      logger.info("Not starting DOIP, DOIP_SERVER_PORT_TLS was: " + portStr + ".");
     }
   }