status of reachabilityForLocalWiFi is ReachableViaWWAN while on WIFI?

Question

I need to detect if the device is connected to WIFI:

reach = [Reachability reachabilityForLocalWiFi];
status = [reach currentReachabilityStatus];

but the status is WWAN when I connect to WIFI on iPad, and there is no SIM inserted, I am about to test the status WITH a SIM.

Does anyone know the reason?

edit:

Just tried with a SIM card, it is still recognised as ReachableViaWWAN, but the actual connection is via 3G(the server only allows 3G connection, WIFI will fail), so I guess the Reachability may vary over time?

score 2 · Accepted Answer · answered Jul 16 '12 at 00:54

Finally I figured it out, the Reachability class I used is part of ASIHTTPRequest, which is a modified version, and it is modified in a way that a method is re-written but old method(with the same signature) is not removed, this does not make trouble(ie new method is called) until I created a static library for 3RD party libraries used in the project, which links the method declaration with the old method that does not fit into the modified framework of Reachability.

score 1 · Answer 2 · answered Sep 16 '14 at 06:08

Reachability *reachability = [Reachability reachabilityForInternetConnection]; BOOL remoteHostStatus = [reachability currentReachabilityStatus];

if (remoteHostStatus == ReachableViaWiFi || remoteHostStatus == ReachableViaWWAN)

{
    [MBProgressHUD showHUDAddedTo:self.view animated:YES];
    NSMutableDictionary *dict                       =   [[NSMutableDictionary alloc] initWithObjectsAndKeys:textFieldUserName.text,@"email",textFieldpass.text,@"password", nil];
    objApp.responseData      = [[NSMutableData data]init];
    objApp.request           = [NSMutableURLRequest requestWithURL:[NSURL URLWithString:[NSString stringWithFormat:@"%@login",mainUrl]]];
    NSData * requestBodyData                        =   [NSJSONSerialization dataWithJSONObject:dict options:0 error:NULL];
    objApp.request.HTTPMethod=     @"POST";
    [objApp.request setHTTPBody:requestBodyData];


    [objApp.request setTimeoutInterval:8.0f];
    // Create url connection and fire request
    objApp.connection = [[NSURLConnection alloc] initWithRequest:objApp.request delegate:self];
}
else
{
    [objApp alertViewFromApp:@"check internet connection of device"];
}

score 0 · Answer 3 · answered Nov 02 '16 at 05:02

Step 1:-

import SystemConfiguration

Step 2:-

 //MARK:- Internet available or Not
public  static  func isConnectedToNetwork() -> Bool {

    var zeroAddress = sockaddr_in()
    zeroAddress.sin_len = UInt8(sizeofValue(zeroAddress))
    zeroAddress.sin_family = sa_family_t(AF_INET)
    let defaultRouteReachability = withUnsafePointer(&zeroAddress) {
        SCNetworkReachabilityCreateWithAddress(nil, UnsafePointer($0))
    }
    var flags = SCNetworkReachabilityFlags()
    if !SCNetworkReachabilityGetFlags(defaultRouteReachability!, &flags) {
        return false
    }
    let isReachable = (flags.rawValue & UInt32(kSCNetworkFlagsReachable)) != 0
    let needsConnection = (flags.rawValue & UInt32(kSCNetworkFlagsConnectionRequired)) != 0

    return (isReachable && !needsConnection)
}

Step 3:-

 if Global.isConnectedToNetwork() {

}

status of reachabilityForLocalWiFi is ReachableViaWWAN while on WIFI?

3 Answers3