[iPhone] NSURLConnection cant find host

Question

Hi all,
I'm having a major problem with my application when using anything other than a wifi connection.
I'm just trying to grab the contents of an XML document at a given URL, this works for the best part on wifi.
For some reason it would appear that the following code cant locate the host or occasionally just times out when using Edge/3G but NOT wifi.
The same issues were happening when I just used [NSData dataWithContentsOfURL:url];
Any help is appreciated!
- (NSXMLParser *)read:(NSString *)urlString
NSURL *url = [NSURL URLWithString:urlString];
//NSData *data = [NSData dataWithContentsOfURL:url];
NSMutableURLRequest *theRequest=[NSMutableURLRequest
requestWithURL:url
cachePolicy:NSURLRequestUseProtocolCachePolicy timeoutInterval:60.0];
//[theRequest setHTTPMethod:@"GET"];
[theRequest setMainDocumentURL: url];
[theRequest setTimeoutInterval:30.0];
NSError *myError = nil;
NSURLResponse *serverResponse;
NSData *data;
data = [NSURLConnection sendSynchronousRequest:theRequest returningResponse:&serverResponse error:&myError];
NSXMLParser *parser = [[NSXMLParser alloc] initWithData:data];
return parser;

Answer 1

I've seen similar problems with NSImage and NSXMLParser with chuncked HTTP responses. Instead I've has to proxy the requests through another server that did not chunk the response, or use NSURLConnection objects and manually concatenate the responses with didReceiveData. If there is an easy workaround for this, please share!