diff --git a/arduino-core/src/cc/arduino/contributions/DownloadableContributionsDownloader.java b/arduino-core/src/cc/arduino/contributions/DownloadableContributionsDownloader.java
index 170c5c6da..b4b7d5ca3 100644
--- a/arduino-core/src/cc/arduino/contributions/DownloadableContributionsDownloader.java
+++ b/arduino-core/src/cc/arduino/contributions/DownloadableContributionsDownloader.java
@@ -56,11 +56,11 @@ public class DownloadableContributionsDownloader {
     stagingFolder = _stagingFolder;
   }
 
-  public File download(DownloadableContribution contribution, Progress progress, final String statusText, ProgressListener progressListener) throws Exception {
-    return download(contribution, progress, statusText, progressListener, false);
+  public File download(DownloadableContribution contribution, Progress progress, final String statusText, ProgressListener progressListener, boolean allowCache) throws Exception {
+    return download(contribution, progress, statusText, progressListener, false, allowCache);
   }
 
-  public File download(DownloadableContribution contribution, Progress progress, final String statusText, ProgressListener progressListener, boolean noResume) throws Exception {
+  public File download(DownloadableContribution contribution, Progress progress, final String statusText, ProgressListener progressListener, boolean noResume, boolean allowCache) throws Exception {
     URL url = new URL(contribution.getUrl());
     Path outputFile = Paths.get(stagingFolder.getAbsolutePath(), contribution.getArchiveFileName());
 
@@ -75,7 +75,7 @@ public class DownloadableContributionsDownloader {
     while (true) {
       // Need to download or resume downloading?
       if (!Files.isRegularFile(outputFile, LinkOption.NOFOLLOW_LINKS) || (Files.size(outputFile) < contribution.getSize())) {
-        download(url, outputFile.toFile(), progress, statusText, progressListener, noResume);
+        download(url, outputFile.toFile(), progress, statusText, progressListener, noResume, allowCache);
         downloaded = true;
       }
 
@@ -121,11 +121,11 @@ public class DownloadableContributionsDownloader {
     return algo != null && !algo.isEmpty();
   }
 
-  public void download(URL url, File tmpFile, Progress progress, String statusText, ProgressListener progressListener) throws Exception {
-    download(url, tmpFile, progress, statusText, progressListener, false);
+  public void download(URL url, File tmpFile, Progress progress, String statusText, ProgressListener progressListener, boolean allowCache) throws Exception {
+    download(url, tmpFile, progress, statusText, progressListener, false, allowCache);
   }
 
-  public void download(URL url, File tmpFile, Progress progress, String statusText, ProgressListener progressListener, boolean noResume) throws Exception {
+  public void download(URL url, File tmpFile, Progress progress, String statusText, ProgressListener progressListener, boolean noResume, boolean allowCache) throws Exception {
     FileDownloader downloader = new FileDownloader(url, tmpFile);
     downloader.addObserver((o, arg) -> {
       FileDownloader me = (FileDownloader) o;
@@ -139,7 +139,7 @@ public class DownloadableContributionsDownloader {
       progress.setProgress(me.getProgress());
       progressListener.onProgress(progress);
     });
-    downloader.download(noResume);
+    downloader.download(noResume, allowCache);
     if (!downloader.isCompleted()) {
       throw new Exception(format(tr("Error downloading {0}"), url), downloader.getError());
     }
@@ -157,7 +157,7 @@ public class DownloadableContributionsDownloader {
     File packageIndexTemp = File.createTempFile(indexFileName, ".tmp");
     try {
       // Download package index
-      download(packageIndexUrl, packageIndexTemp, progress, statusText, progressListener, true);
+      download(packageIndexUrl, packageIndexTemp, progress, statusText, progressListener, true, true);
 
       if (verifyDomain(packageIndexUrl)) {
         URL signatureUrl = new URL(packageIndexUrl.toString() + ".sig");
diff --git a/arduino-core/src/cc/arduino/contributions/GZippedJsonDownloader.java b/arduino-core/src/cc/arduino/contributions/GZippedJsonDownloader.java
index 010a0a863..8a717dcf2 100644
--- a/arduino-core/src/cc/arduino/contributions/GZippedJsonDownloader.java
+++ b/arduino-core/src/cc/arduino/contributions/GZippedJsonDownloader.java
@@ -52,7 +52,7 @@ public class GZippedJsonDownloader {
     this.gzippedUrl = gzippedUrl;
   }
 
-  public void download(File tmpFile, Progress progress, String statusText, ProgressListener progressListener) throws Exception {
+  public void download(File tmpFile, Progress progress, String statusText, ProgressListener progressListener, boolean allowCache) throws Exception {
     File gzipTmpFile = null;
     try {
       String tmpFileName = FilenameUtils.getName(new URL(Constants.LIBRARY_INDEX_URL_GZ).getPath());
@@ -60,10 +60,10 @@ public class GZippedJsonDownloader {
       // remove eventual leftovers from previous downloads
       Files.deleteIfExists(gzipTmpFile.toPath());
 
-      new JsonDownloader(downloader, gzippedUrl).download(gzipTmpFile, progress, statusText, progressListener);
+      new JsonDownloader(downloader, gzippedUrl).download(gzipTmpFile, progress, statusText, progressListener, allowCache);
       decompress(gzipTmpFile, tmpFile);
     } catch (Exception e) {
-      new JsonDownloader(downloader, url).download(tmpFile, progress, statusText, progressListener);
+      new JsonDownloader(downloader, url).download(tmpFile, progress, statusText, progressListener, allowCache);
     } finally {
       if (gzipTmpFile != null) {
         Files.deleteIfExists(gzipTmpFile.toPath());
diff --git a/arduino-core/src/cc/arduino/contributions/JsonDownloader.java b/arduino-core/src/cc/arduino/contributions/JsonDownloader.java
index 88f9e7783..5b932d080 100644
--- a/arduino-core/src/cc/arduino/contributions/JsonDownloader.java
+++ b/arduino-core/src/cc/arduino/contributions/JsonDownloader.java
@@ -44,9 +44,9 @@ public class JsonDownloader {
     this.url = url;
   }
 
-  public void download(File tmpFile, Progress progress, String statusText, ProgressListener progressListener) throws Exception {
+  public void download(File tmpFile, Progress progress, String statusText, ProgressListener progressListener, boolean allowCache) throws Exception {
     try {
-      downloader.download(url, tmpFile, progress, statusText, progressListener);
+      downloader.download(url, tmpFile, progress, statusText, progressListener, allowCache);
     } catch (InterruptedException e) {
       // Download interrupted... just exit
     }
diff --git a/arduino-core/src/cc/arduino/contributions/libraries/LibraryInstaller.java b/arduino-core/src/cc/arduino/contributions/libraries/LibraryInstaller.java
index a9722c2ca..cbab19c89 100644
--- a/arduino-core/src/cc/arduino/contributions/libraries/LibraryInstaller.java
+++ b/arduino-core/src/cc/arduino/contributions/libraries/LibraryInstaller.java
@@ -77,7 +77,7 @@ public class LibraryInstaller {
     final String statusText = tr("Downloading libraries index...");
     try {
       GZippedJsonDownloader gZippedJsonDownloader = new GZippedJsonDownloader(downloader, libraryURL, new URL(Constants.LIBRARY_INDEX_URL_GZ));
-      gZippedJsonDownloader.download(libraryIndexTemp, progress, statusText, progressListener);
+      gZippedJsonDownloader.download(libraryIndexTemp, progress, statusText, progressListener, true);
     } catch (InterruptedException e) {
       // Download interrupted... just exit
       return;
@@ -118,7 +118,7 @@ public class LibraryInstaller {
 
     // Step 1: Download library
     try {
-      downloader.download(lib, progress, I18n.format(tr("Downloading library: {0}"), lib.getName()), progressListener);
+      downloader.download(lib, progress, I18n.format(tr("Downloading library: {0}"), lib.getName()), progressListener, false);
     } catch (InterruptedException e) {
       // Download interrupted... just exit
       return;
diff --git a/arduino-core/src/cc/arduino/contributions/packages/ContributionInstaller.java b/arduino-core/src/cc/arduino/contributions/packages/ContributionInstaller.java
index a8bf08f09..ddcfeea57 100644
--- a/arduino-core/src/cc/arduino/contributions/packages/ContributionInstaller.java
+++ b/arduino-core/src/cc/arduino/contributions/packages/ContributionInstaller.java
@@ -102,7 +102,7 @@ public class ContributionInstaller {
     // Download all
     try {
       // Download platform
-      downloader.download(contributedPlatform, progress, tr("Downloading boards definitions."), progressListener);
+      downloader.download(contributedPlatform, progress, tr("Downloading boards definitions."), progressListener, false);
       progress.stepDone();
 
       // Download tools
@@ -110,7 +110,7 @@ public class ContributionInstaller {
       for (ContributedTool tool : tools) {
         String msg = format(tr("Downloading tools ({0}/{1})."), i, tools.size());
         i++;
-        downloader.download(tool.getDownloadableContribution(platform), progress, msg, progressListener);
+        downloader.download(tool.getDownloadableContribution(platform), progress, msg, progressListener, false);
         progress.stepDone();
       }
     } catch (InterruptedException e) {
diff --git a/arduino-core/src/cc/arduino/utils/network/FileDownloader.java b/arduino-core/src/cc/arduino/utils/network/FileDownloader.java
index 0b5f14aec..f78e1e1d5 100644
--- a/arduino-core/src/cc/arduino/utils/network/FileDownloader.java
+++ b/arduino-core/src/cc/arduino/utils/network/FileDownloader.java
@@ -117,15 +117,12 @@ public class FileDownloader extends Observable {
     notifyObservers();
   }
 
-  public void download() throws InterruptedException {
-    download(false);
-  }
 
-  public void download(boolean noResume) throws InterruptedException {
+  public void download(boolean noResume, boolean allowCache) throws InterruptedException {
     if ("file".equals(downloadUrl.getProtocol())) {
       saveLocalFile();
     } else {
-      downloadFile(noResume);
+      downloadFile(noResume, allowCache);
     }
   }
 
@@ -139,7 +136,7 @@ public class FileDownloader extends Observable {
     }
   }
 
-  private void downloadFile(boolean noResume) throws InterruptedException {
+  private void downloadFile(boolean noResume, boolean allowCache) throws InterruptedException {
     RandomAccessFile randomAccessOutputFile = null;
 
     try {
@@ -220,9 +217,12 @@ public class FileDownloader extends Observable {
       }
       // Set the cache whe it finish to download the file
       IOUtils.closeQuietly(randomAccessOutputFile);
-      if (fileCached.isPresent()) {
+      if (fileCached.isPresent() && allowCache) {
         fileCached.get().updateCacheFile(outputFile);
       }
+      if (!allowCache) {
+        log.info("The file {} was not cached because allow cache is false", downloadUrl);
+      }
       setStatus(Status.COMPLETE);
     } catch (InterruptedException e) {
       setStatus(Status.CANCELLED);
@@ -232,12 +232,12 @@ public class FileDownloader extends Observable {
     } catch (SocketTimeoutException e) {
       setStatus(Status.CONNECTION_TIMEOUT_ERROR);
       setError(e);
-      log.error(e);
+      log.error("The request went in socket timeout", e);
 
     } catch (Exception e) {
       setStatus(Status.ERROR);
       setError(e);
-      log.error(e);
+      log.error("The request stop", e);
 
     } finally {
       IOUtils.closeQuietly(randomAccessOutputFile);