diff --git a/SDWebImage/SDWebImageManager.m b/SDWebImage/SDWebImageManager.m
index 3980ced2b..9c42888b8 100644
--- a/SDWebImage/SDWebImageManager.m
+++ b/SDWebImage/SDWebImageManager.m
@@ -192,9 +192,13 @@ - (void)diskImageExistsForURL:(NSURL *)url
                         }
                     });
 
-                    BOOL shouldBeFailedURLAlliOSVersion = (error.code != NSURLErrorNotConnectedToInternet && error.code != NSURLErrorCancelled && error.code != NSURLErrorTimedOut);
-                    BOOL shouldBeFailedURLiOS7 = (NSFoundationVersionNumber > NSFoundationVersionNumber_iOS_6_1 && error.code != NSURLErrorInternationalRoamingOff && error.code != NSURLErrorCallIsActive && error.code != NSURLErrorDataNotAllowed);
-                    if (shouldBeFailedURLAlliOSVersion || shouldBeFailedURLiOS7) {
+                    if (   error.code != NSURLErrorNotConnectedToInternet
+                        && error.code != NSURLErrorCancelled
+                        && error.code != NSURLErrorTimedOut
+                        && error.code != NSURLErrorInternationalRoamingOff
+                        && error.code != NSURLErrorDataNotAllowed
+                        && error.code != NSURLErrorCannotFindHost
+                        && error.code != NSURLErrorCannotConnectToHost) {
                         @synchronized (self.failedURLs) {
                             [self.failedURLs addObject:url];
                         }