Connection Status with reachability

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I'm using Reachability on my project and when I tried to get information about connection type I get this error.

*** Assertion failure in -[Reachability currentReachabilityStatus],/myProjectPath/Reachability.m:530
2012-04-03 21:25:45.619 Traffic[7862:11603] *** Terminating app due to uncaught exception 'NSInternalInconsistencyException', reason: 'currentNetworkStatus called with NULL reachabilityRef'

I don't know what is wrong with my code. I put the same code as in ReachabilityAppDelegate to get connection status.

my code:

// get type of user connection
NSString* statusString= @"NA";

Reachability *curReach = [[Reachability alloc] init];
NetworkStatus netStatus = [curReach currentReachabilityStatus];
BOOL connectionRequired= [curReach connectionRequired];

switch (netStatus)
    case NotReachable:
        statusString = @"NA";
        //Minor interface detail- connectionRequired may return yes, even when the host is unreachable.  We cover that up here...
        connectionRequired= NO;

    case ReachableViaWWAN:
        statusString = @"WWAN";
    case ReachableViaWiFi:
        statusString= @"WIFI";
2012-04-04 00:44
by Vellozo


I had the same problem. I was checking for if reachability.currentReachabilityStatus() == NotReachable before doing

reachability = Reachability.forInternetConnection()

The issues is that you're asking for a status before you start the notifier, and the _reachabilityRef is nil.

Make sure you do the calls in their needed order. first start notifier, and then only after that check/ask for a status.

2017-01-23 14:06
by Danut Pralea
Perfect. That solved the issue for me - Bem 2018-12-20 14:47


check for:

//Called by Reachability whenever status changes.
- (void) reachabilityChanged: (NSNotification* )note
    Reachability* curReach = [note object];
    NSParameterAssert([curReach isKindOfClass: [Reachability class]]);
    [self updateInterfaceWithReachability: curReach];

in the app delegate. The NSParameterAssert causes the crash in my case

2012-07-19 08:57
by Zennichimaro