ASIHTTPRequest resume request after losing internet connection

How to handle losing of internet connection? I'm using ASIHTTPReqeust to download file, and i want to handle when my internet connection is available and not, for resuming download. Who did something like that? When i disable wi-fi while downloading file, ASIHTTPReqeustDelegate calls method requestFaliled:(ASIHTTPRequest *) request开发者_开发问答; How to start download after enabling internet?

P.S. I download files asynchronously ([request startAsynchronous];)

The official documentation covers this:

http://allseeing-i.com/ASIHTTPRequest/How-to-use#resuming_interrupted_downloads