diff --git a/Classes/BITHockeyManager.m b/Classes/BITHockeyManager.m
index f5e40c567f..3e430e0ca8 100644
--- a/Classes/BITHockeyManager.m
+++ b/Classes/BITHockeyManager.m
@@ -71,7 +71,11 @@
 
 - (void)logInvalidIdentifier:(NSString *)environment {
   if (!_appStoreEnvironment) {
-    NSLog(@"[HockeySDK] ERROR: The %@ is invalid! Please use the HockeyApp app identifier you find on the apps website on HockeyApp! The SDK is disabled!", environment);
+    if ([environment isEqualToString:@"liveIdentifier"]) {
+      NSLog(@"[HockeySDK] WARNING: The liveIdentifier is invalid! The SDK will be disabled when deployed to the App Store without setting a valid app identifier!");
+    } else {
+      NSLog(@"[HockeySDK] ERROR: The %@ is invalid! Please use the HockeyApp app identifier you find on the apps website on HockeyApp! The SDK is disabled!", environment);
+    }
   }
 }
 
diff --git a/Classes/BITUpdateManager.m b/Classes/BITUpdateManager.m
index 117f0376e5..5557ab1170 100644
--- a/Classes/BITUpdateManager.m
+++ b/Classes/BITUpdateManager.m
@@ -842,8 +842,11 @@
     NSString *responseString = [[NSString alloc] initWithBytes:[_receivedData bytes] length:[_receivedData length] encoding: NSUTF8StringEncoding];
     BITHockeyLog(@"INFO: Received API response: %@", responseString);
     
-    if (!responseString || ![responseString dataUsingEncoding:NSUTF8StringEncoding])
+    if (!responseString || ![responseString dataUsingEncoding:NSUTF8StringEncoding]) {
+      self.receivedData = nil;
+      self.urlConnection = nil;
       return;
+    }
     
     NSError *error = nil;
     NSDictionary *json = (NSDictionary *)[NSJSONSerialization JSONObjectWithData:[responseString dataUsingEncoding:NSUTF8StringEncoding] options:kNilOptions error:&error];
@@ -854,15 +857,14 @@
     if (![self isAppStoreEnvironment]) {
       NSArray *feedArray = (NSArray *)[json valueForKey:@"versions"];
       
-      self.receivedData = nil;
-      self.urlConnection = nil;
-      
       // remember that we just checked the server
       self.lastCheck = [NSDate date];
       
       // server returned empty response?
       if (![feedArray count]) {
         BITHockeyLog(@"WARNING: No versions available for download on HockeyApp.");
+        self.receivedData = nil;
+        self.urlConnection = nil;
         return;
       } else {
         _lastCheckFailed = NO;
@@ -921,6 +923,8 @@
                                           code:BITUpdateAPIServerReturnedEmptyResponse
                                       userInfo:[NSDictionary dictionaryWithObjectsAndKeys:@"Server returned an empty response.", NSLocalizedDescriptionKey, nil]]];
   }
+  self.receivedData = nil;
+  self.urlConnection = nil;
 }
 
 - (BOOL)hasNewerMandatoryVersion {