NSURLConnection always connects to the same URL - objective-c

Question

Whenever I create an NSURLConnection in a class I have, it always connects to the first URL connected to by that class. It has an ivar conn that the NSURLConnection is stored in, and here is the method that connects:
-(void)getMoreProblems
{
problemsPage++;
NSURL *url=[NSURL URLWithString:[NSString stringWithFormat:#"http://projecteuler.net/problems;page=%d",problemsPage]];
NSURLRequest *req=[NSURLRequest requestWithURL:url];
NSLog(#"%p",conn);
conn=[[NSURLConnection alloc] initWithRequest:req delegate:self];
NSLog(#"%p",conn);
}
I have checked by NSLoging the URL's description and the Connection's pointer that they are different, as well as telling the UIApplication to load the URL in safari. As far as I can tell, It tries to load the right page. I also tried both POST and GET, but it didn't make a difference. What might be causing this?
EDIT FOR ANYONE LOOKING AT THIS WITH A SIMILAR PROBLEM:
My problem ended up being that I did not reinitialize the NSMutableData I stored the connection data in after each page loaded.

Answer 1

This isn't really an answer, but it's too long for a comment. I can't see anything wrong with the code that you posted. I pasted your code for getMoreProblems into a new project and added the delegate methods necessary to look at the results -- as far as I can tell it worked fine. I can see in the resulting string, the problem numbers starting with 1 on the first page I receive (from the first call to getMoreProblems) and starting with problem 51 on the second call to getMoreProblems. The only thing I added to your getMoreProblems method was the if-else clause at the end. HEre is the code I used:
#synthesize window = _window,receivedData;
- (void)applicationDidFinishLaunching:(NSNotification *)aNotification {
problemsPage = 0;
[self getMoreProblems];
}
-(void)getMoreProblems {
problemsPage++;
NSURL *url=[NSURL URLWithString:[NSString stringWithFormat:#"http://projecteuler.net/problems;page=%d",problemsPage]];
NSURLRequest *req=[NSURLRequest requestWithURL:url];
NSLog(#"%p",conn);
conn=[[NSURLConnection alloc] initWithRequest:req delegate:self];
NSLog(#"%p",conn);
if (conn) {
self.receivedData = [NSMutableData data];
} else {
NSLog(#"The Connection Failed");
}
}
- (void)connection:(NSURLConnection *)connection didReceiveResponse:(NSURLResponse *)response {
NSLog(#"%#",response.URL);
[self.receivedData setLength:0];
}
- (void)connection:(NSURLConnection *)connection didReceiveData:(NSData *)data {
NSLog(#"In connection:didReceiveData:");
[self.receivedData appendData:data];
}
- (void)connectionDidFinishLoading:(NSURLConnection *)connection {
NSLog(#"Succeeded! Received %lu bytes of data",[receivedData length]);
NSString *page = [[NSString alloc] initWithData:self.receivedData encoding:NSUTF8StringEncoding];
NSLog(#"%#",page);
[self performSelector:#selector(getMoreProblems) withObject:nil afterDelay:5];
}
So, I can't reproduce your problem -- I'm guessing it lies elsewhere in some code that you didn't post.