diff --git a/Squeezer/src/main/java/uk/org/ngo/squeezer/Preferences.java b/Squeezer/src/main/java/uk/org/ngo/squeezer/Preferences.java
index 919a87493..02ea402b8 100644
--- a/Squeezer/src/main/java/uk/org/ngo/squeezer/Preferences.java
+++ b/Squeezer/src/main/java/uk/org/ngo/squeezer/Preferences.java
@@ -82,6 +82,9 @@ public final class Preferences {
     // Optional Squeezebox Server password
     private static final String KEY_MAC = "squeezer.mac";
 
+    // Timestamp when the last scan finished per server
+    private static final String KEY_LAST_SCAN = "lastScan";
+
     private static final String KEY_LAST_RUN_VERSION_CODE = "lastRunVersionCode";
 
     // The playerId that we were last connected to. e.g. "00:04:20:17:04:7f"
@@ -291,6 +294,7 @@ private void readServerAddress(ServerAddress serverAddress, String address, int
         serverAddress.password = getStringPreference(prefix(serverAddress) + KEY_PASSWORD);
         serverAddress.wakeOnLan = sharedPreferences.getBoolean(prefix(serverAddress) + KEY_WOL, false);
         serverAddress.mac = Util.parseMac(getStringPreference(prefix(serverAddress) + KEY_MAC));
+        serverAddress.lastScan = sharedPreferences.getLong(prefix(serverAddress) + KEY_LAST_SCAN, 0);
     }
 
     private String getBssId() {
@@ -342,6 +346,8 @@ public static class ServerAddress {
         public boolean wakeOnLan;
         public byte[] mac;
 
+        public long lastScan;
+
         private ServerAddress(String bssId, int defaultPort) {
             this.defaultPort = defaultPort;
             this.bssId = bssId;
@@ -444,6 +450,13 @@ public void saveServerAddress(ServerAddress serverAddress) {
         editor.apply();
     }
 
+    public void saveLastScan(ServerAddress serverAddress, long lastScan) {
+        serverAddress.lastScan = lastScan;
+        SharedPreferences.Editor editor = sharedPreferences.edit();
+        editor.putLong(prefix(serverAddress) + KEY_LAST_SCAN, lastScan);
+        editor.apply();
+    }
+
     public long getLastRunVersionCode() {
         return sharedPreferences.getLong(KEY_LAST_RUN_VERSION_CODE, 0);
     }
diff --git a/Squeezer/src/main/java/uk/org/ngo/squeezer/service/CometClient.java b/Squeezer/src/main/java/uk/org/ngo/squeezer/service/CometClient.java
index 2eca21cc4..998d7f0da 100644
--- a/Squeezer/src/main/java/uk/org/ngo/squeezer/service/CometClient.java
+++ b/Squeezer/src/main/java/uk/org/ngo/squeezer/service/CometClient.java
@@ -75,6 +75,7 @@
 import uk.org.ngo.squeezer.service.event.PlayerVolume;
 import uk.org.ngo.squeezer.service.event.RegisterSqueezeNetwork;
 import uk.org.ngo.squeezer.util.FluentHashMap;
+import uk.org.ngo.squeezer.util.ImageFetcher;
 import uk.org.ngo.squeezer.util.Reflection;
 import uk.org.ngo.squeezer.util.SendWakeOnLan;
 
@@ -360,6 +361,14 @@ private void parseServerStatus(ClientSessionChannel channel, Message message) {
         // so we check the server version which is also set from server status
         boolean firstTimePlayersReceived = (getConnectionState().getServerVersion() == null);
 
+        final Preferences preferences = Squeezer.getPreferences();
+        final Preferences.ServerAddress serverAddress = preferences.getServerAddress();
+        long lastScan = Util.getLong(data, "lastscan");
+        if (lastScan > 0 && lastScan != serverAddress.lastScan) {
+            preferences.saveLastScan(serverAddress, lastScan);
+            ImageFetcher.getInstance(Squeezer.getInstance()).clearCache();
+        }
+
         getConnectionState().setMediaDirs(Util.getStringArray(data, ConnectionState.MEDIA_DIRS));
         getConnectionState().setServerVersion((String) data.get("version"));
         Object[] item_data = (Object[]) data.get("players_loop");
diff --git a/Squeezer/src/main/java/uk/org/ngo/squeezer/util/DiskLruCache.java b/Squeezer/src/main/java/uk/org/ngo/squeezer/util/DiskLruCache.java
index 9747f7d65..83931d619 100644
--- a/Squeezer/src/main/java/uk/org/ngo/squeezer/util/DiskLruCache.java
+++ b/Squeezer/src/main/java/uk/org/ngo/squeezer/util/DiskLruCache.java
@@ -642,9 +642,7 @@ public synchronized boolean remove(String key) throws IOException {
 
         for (int i = 0; i < valueCount; i++) {
             File file = entry.getCleanFile(i);
-            if (!file.delete()) {
-                throw new IOException("failed to delete " + file);
-            }
+            deleteIfExists(file);
             size -= entry.lengths[i];
             entry.lengths[i] = 0;
         }
diff --git a/Squeezer/src/main/java/uk/org/ngo/squeezer/util/ImageCache.java b/Squeezer/src/main/java/uk/org/ngo/squeezer/util/ImageCache.java
index e15641ea1..dfc110fea 100644
--- a/Squeezer/src/main/java/uk/org/ngo/squeezer/util/ImageCache.java
+++ b/Squeezer/src/main/java/uk/org/ngo/squeezer/util/ImageCache.java
@@ -408,7 +408,7 @@ public void clearCache() {
 
         synchronized (mDiskCacheLock) {
             mDiskCacheStarting = true;
-            if (mDiskLruCache != null && !mDiskLruCache.isClosed()) {
+            if (mDiskLruCache != null) {
                 try {
                     mDiskLruCache.delete();
                     if (BuildConfig.DEBUG) {