diff --git a/launcher/src/main/java/com/skcraft/launcher/install/HttpDownloader.java b/launcher/src/main/java/com/skcraft/launcher/install/HttpDownloader.java
index 6c5aeea..ccc3f47 100644
--- a/launcher/src/main/java/com/skcraft/launcher/install/HttpDownloader.java
+++ b/launcher/src/main/java/com/skcraft/launcher/install/HttpDownloader.java
@@ -269,7 +269,7 @@
 
                 // We only want to try to resume a partial download if the request succeeded before
                 // throwing an exception halfway through. If it didn't succeed, just throw the error.
-                if (tries >= tryCount || !request.isSuccessCode()) {
+                if (tries >= tryCount || !request.isConnected() || !request.isSuccessCode()) {
                     throw e;
                 }
 
diff --git a/launcher/src/main/java/com/skcraft/launcher/util/HttpRequest.java b/launcher/src/main/java/com/skcraft/launcher/util/HttpRequest.java
index 3f05cd3..6bf1457 100644
--- a/launcher/src/main/java/com/skcraft/launcher/util/HttpRequest.java
+++ b/launcher/src/main/java/com/skcraft/launcher/util/HttpRequest.java
@@ -266,6 +266,15 @@
     }
 
     /**
+     * Check if a connection was ever made
+     *
+     * @return True if a connection is available, false otherwise
+     */
+    public boolean isConnected() {
+        return conn != null;
+    }
+
+    /**
      * Buffer the returned response.
      *
      * @return the buffered response