iOS с использованием XMPP не удалось подключиться к ejabberd

Я использую https://github.com/robbiehanson/XMPPFramework для подключения к своему собственному серверу ejabberd, но это всегда терпело неудачу после переговоров.

вот журнал, который я получил: 2014-01-17 07:14:40.780 Ошибка чата [48246:70b]: (null)

2014-01-17 07:14:40.789 Чат[48246:70b] xmppStreamWillConnect

2014-01-17 07:14:46.076 Чат[48246:70b] socketDidConnect

2014-01-17 07:14:46.077 Чат[48246:70b] xmppStreamDidStartNegotiation

2014-01-17 07:14:51.799 Chat[48246:70b] xmppStreamDidDisconnect: Домен ошибки = GCDAsyncSocketErrorDomain Code = 7 «Сокет закрыт удаленным узлом» UserInfo = 0x918d2e0 {NSLocalizedDescription = Сокет закрыт удаленным узлом}

и вот код:

- (void)viewDidLoad
{
    [super viewDidLoad];

    self.stream = [[XMPPStream alloc] init];
    self.stream.myJID = [XMPPJID jidWithString:@"[email protected]"];
    self.stream.hostName = @"my host ip";
    self.stream.hostPort = 5222;
    [self.stream addDelegate:self delegateQueue:dispatch_get_main_queue()];

    self.reconnect = [[XMPPReconnect alloc] init];
    [self.reconnect activate:self.stream];

    self.muc = [[XMPPMUC alloc] init];
    [self.muc activate:self.stream];

    NSError *error = nil;
    if (![self.stream connectWithTimeout:XMPPStreamTimeoutNone error:&error]) {
        NSLog(@"error: %@", error);
    }
    NSLog(@"error: %@", error);
}


- (void)xmppStreamWillConnect:(XMPPStream *)sender
{
    NSLog(@"xmppStreamWillConnect");
}

- (void)xmppStream:(XMPPStream *)sender socketDidConnect:(GCDAsyncSocket *)socket
{
    NSLog(@"socketDidConnect");
}

- (void)xmppStreamDidStartNegotiation:(XMPPStream *)sender
{
    NSLog(@"xmppStreamDidStartNegotiation");
}

- (void)xmppStream:(XMPPStream *)sender willSecureWithSettings:(NSMutableDictionary *)settings
{
    NSLog(@"willSecureWithSettings: %@", settings);
}

- (void)xmppStreamDidSecure:(XMPPStream *)sender
{
    NSLog(@"xmppStreamDidSecure");
}

- (void)xmppStreamDidConnect:(XMPPStream *)sender
{
    NSLog(@"xmppStreamDidConnect");
    NSError *error = nil;
    [self.stream authenticateAnonymously:&error];
    NSLog(@"authenticate: %@", error);
}

- (void)xmppStreamDidRegister:(XMPPStream *)sender
{
    NSLog(@"xmppStreamDidRegister");
}

- (void)xmppStream:(XMPPStream *)sender didNotRegister:(NSXMLElement *)error
{
    NSLog(@"didNotRegister: %@", error);

}

- (void)xmppStreamDidAuthenticate:(XMPPStream *)sender
{
    NSLog(@"xmppStreamDidAuthenticate");
}

- (void)xmppStream:(XMPPStream *)sender didNotAuthenticate:(NSXMLElement *)error
{
    NSLog(@"didNotAuthenticate: %@", error);
}

- (void)xmppStreamWasToldToDisconnect:(XMPPStream *)sender
{
    NSLog(@"xmppStreamWasToldToDisconnect");
}

- (void)xmppStreamConnectDidTimeout:(XMPPStream *)sender
{
    NSLog(@"xmppStreamConnectDidTimeout");
}


- (void)xmppStreamDidDisconnect:(XMPPStream *)sender withError:(NSError *)error
{
    NSLog(@"xmppStreamDidDisconnect: %@", error);
}