NSURLConnection delegates not being called even when run on main thread - objective-c

Question

I know that this kind of question has been asked many times, but all of them point to saying that the connection must be on a different thread.
-(void)distanceMatrix{
NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:[NSURL URLWithString:distanceMatrixURL]
cachePolicy:NSURLRequestUseProtocolCachePolicy
timeoutInterval:10];
connection2 = [[NSURLConnection alloc] initWithRequest:request delegate:self startImmediately:NO];
[connection2 scheduleInRunLoop:[NSRunLoop mainRunLoop]
forMode:NSDefaultRunLoopMode];
NSLog(#"Is%# main thread", ([NSThread isMainThread] ? #"" : #" NOT"));
[connection2 start];
if (connection2)
{
responseData2 = [NSMutableData data];
connectionIsActive = YES;
} else {
NSLog(#"connection failed");
}
}
- (void)connection2:(NSURLConnection *)connection2 didReceiveResponse:(NSURLResponse *)response
{NSLog(#"recieved response");
[responseData2 setLength:0];
}
- (void)connection2:(NSURLConnection *)connection2 didReceiveData:(NSData *)data
{
[responseData2 appendData:data];
}
- (void)connection2:(NSURLConnection *)connection2 didFailWithError:(NSError *)error
{
connectionIsActive = NO;
NSLog(#"failed!!");
}
- (void)connection2DidFinishLoading:(NSURLConnection *)conn
{
connectionIsActive = NO;
SBJsonParser *json = [[SBJsonParser alloc] init];
NSString *responseString = [[NSString alloc] initWithData:responseData2 encoding:NSUTF8StringEncoding];
NSError *jsonError = nil;
NSDictionary *parsedJSON = [json objectWithString:responseString error:&jsonError];
travelTime= [[[[parsedJSON valueForKey:#"rows"] valueForKey:#"elements"] valueForKey:#"duration"] valueForKey:#"text"];
NSLog(#"traveltime = %#", travelTime);
}
When I log it, it says that it runs on the main thread. Connection2 is active but none of the delegates are called.
Also, this is the way I am calling distanceMatrix method
-(id)initWithJsonResultDict:(NSDictionary *)jsonResultDict andUserCoordinates: (CLLocationCoordinate2D)userCoords andTimeURL:(NSString*)timeURL
{
self.distanceMatrixURL = timeURL;
[self distanceMatrix];
//more code here for other purposes
}

Answer 1

Because you have added a 2 into the names of all of the delegate methods. That changes the method signature so you aren't implementing the correct methods. Remove all of the 2 at the start of the methods - (void)connection2: and it should work.