[iOS]Error Domain=NSURLErrorDomain Code=-1005 “The network connection was lost.”

reactnative를 연습할 때 그림이 표시되지 않는 문제가 발생하여 인쇄된 오류가 문제처럼 발생하여 해결 방법을 찾았습니다.Problem:
I have application which works fine on Xcode6-Beta1 and Xcode6-Beta2 on both iOS7 and iOS8 but, in Xcode6-Beta3, Beta4, Beta5 facing network issue on iOS8 but works fine on iOS7. I recieve error:
“The network connection was lost.”.
The error printed was as follows:
error: Error Domain=NSURLErrorDomain Code=-1005 “The network connection was lost.” UserInfo=0x7ba8e5b0 {NSErrorFailingURLStringKey=, _kCFStreamErrorCodeKey=57, NSErrorFailingURLKey=, NSLocalizedDescription=The network connection was lost., _kCFStreamErrorDomainKey=1, NSUnderlyingError=0x7a6957e0 “The network connection was lost.”}
I use AFNetworking 2.x and following code snippet to make network call:

AFHTTPRequestOperationManager *manager = [AFHTTPRequestOperationManager manager];
[manager setSecurityPolicy:policy];
manager.requestSerializer = [AFHTTPRequestSerializer serializer];
manager.responseSerializer = [AFHTTPResponseSerializer serializer];

[manager POST:<example-url>
   parameters:<parameteres>
      success:^(AFHTTPRequestOperation *operation, id responseObject) {
          NSLog(@“Success: %@", responseObject); } failure:^(AFHTTPRequestOperation *operation, NSError *error) { NSLog(@"Error: %@", error); }];

I tried with NSURLSession and still I receive the same error.
Answers: Restarting the simulator fixed the issue for me.
We add this exact error and it turned out to be an issue with the underlying HTTP implementation of NSURLRequest:
As far as we can tell, when iOS 8 receive an HTTP response with a Keep-Alive header, it keeps this connection to re-use later (as it should), but it keeps it for more than the timeout parameter of the Keep-Alive header and then when a second request comes it tries to re-use a connection that has been dropped by the server.
As a monkey patch if anybody else is having this issue, you can add BrowserMatch “^iOS/8.” nokeepalive (with the correct user agent) somewhere in your Apache server config (This is nowhere near perfect but makes things work until Apple patches iOS8).
For mine, Resetting content and settings of Simulator works. To reset the simulator follow the steps:
iOS Simulator -> Reset Content and Settings -> Press Reset (on the warning which will come)
The iOS 8.0 simulator runtime has a bug whereby if your network configuration changes while the simulated device is booted, higher level APIs (eg: CFNetwork) in the simulated runtime will think that it has lost network connectivity. Currently, the advised workaround is to simply reboot the simulated device when your network configuration changes.
If you are impacted by this issue, please file additional duplicate radars at http://bugreport.apple.com to get it increased priority.
If you see this issue without having changed network configurations, then that is not a known bug, and you should definitely file a radar, indicating that the issue is not the known network-configuration-changed bug.
참조:http://stackoverflow.com/questions/25372318/error-domain-nsurlerrordomain-code-1005-the-network-connection-was-lost