diff --git a/LaunchServer/source/command/handler/CommandHandler.java b/LaunchServer/source/command/handler/CommandHandler.java
index ee61325..b29e9d0 100644
--- a/LaunchServer/source/command/handler/CommandHandler.java
+++ b/LaunchServer/source/command/handler/CommandHandler.java
@@ -152,6 +152,7 @@
         try
         {
             args = parse(line);
+            if(args.length > 0) args[0] = args[0].toLowerCase();
         }
         catch (Throwable exc)
         {
@@ -212,8 +213,8 @@
     public final void registerCommand(String name, Command command)
     {
         VerifyHelper.verifyIDName(name);
-        VerifyHelper.putIfAbsent(commands, name, Objects.requireNonNull(command, "command"),
-                String.format("Command has been already registered: '%s'", name));
+        VerifyHelper.putIfAbsent(commands, name.toLowerCase(), Objects.requireNonNull(command, "command"),
+                String.format("Command has been already registered: '%s'", name.toLowerCase()));
     }
 
     private void readLoop() throws IOException
diff --git a/LaunchServer/source/response/ResponseThread.java b/LaunchServer/source/response/ResponseThread.java
index 7cb7d59..ac8e2e9 100644
--- a/LaunchServer/source/response/ResponseThread.java
+++ b/LaunchServer/source/response/ResponseThread.java
@@ -99,7 +99,7 @@
             if (magicNumber != Launcher.PROTOCOL_MAGIC - 1)
             { // Previous launcher protocol
                 output.writeBoolean(false);
-                throw new IOException(String.format("#%d Protocol magic mismatch", id));
+                if (LogHelper.isDebugEnabled()) throw new IOException(String.format("#%d Protocol magic mismatch", id));
             }
             legacy = true;
         }
@@ -109,7 +109,7 @@
         if (!keyModulus.equals(server.privateKey.getModulus()))
         {
             output.writeBoolean(false);
-            throw new IOException(String.format("#%d Key modulus mismatch", id));
+            if (LogHelper.isDebugEnabled()) throw new IOException(String.format("#%d Key modulus mismatch", id));
         }
 
         // Read request type
@@ -117,7 +117,7 @@
         if (legacy && type != Type.LAUNCHER)
         {
             output.writeBoolean(false);
-            throw new IOException(String.format("#%d Not LAUNCHER request on legacy protocol", id));
+            if (LogHelper.isDebugEnabled()) throw new IOException(String.format("#%d Not LAUNCHER request on legacy protocol", id));
         }
         if (!server.serverSocketHandler.onHandshake(id, type))
         {