Weird error code 4294966295 for NSURLConnection

Question

I am getting an unusual error when using NSURLConnection:

There are no logs, or nothing to go here. All I can get is the error code 4294966295. Any idea what that might be?

I am running XCode7 and iOS9 on my device. I have already disabled ATS.

Answer 1

4294966295 is -1001 when seen as a signed 32 bit int. This is NSURLErrorTimedOut. You can look up the codes in NSURLError.h.