title: Unable to request ads from server due to network error- IMA SDK Error and iOS
body: <p>I am using IMA SDK (iOS - Swift) to play pre-roll ads(Wrapper VAST 3.0)
  But when i use this url "<a href="http://fusioniprojects.com/rnd/addpod/adpods.xml" rel="nofollow noreferrer">http://fusioniprojects.com/rnd/addpod/adpods.xml</a>"</p>
  
  <p>I am getting following error in my log 
                                    "<strong>Unable to request ads from server due to network error.</strong>" </p>
  
  <p>and when i am using the url of this type -</p>
  
  <p>"<a href="https://pubads.g.doubleclick.net/gampad/ads?sz=640x480&amp;iu=/124319096/external/single_ad_samples&amp;ciu_szs=300x250&amp;impl=s&amp;gdfp_req=1&amp;env=vp&amp;output=vast&amp;unviewed_position_start=1&amp;cust_params=deployment%3Ddevsite%26sample_ct%3Dredirecterror&amp;correlator=" rel="nofollow noreferrer">https://pubads.g.doubleclick.net/gampad/ads?sz=640x480&amp;iu=/124319096/external/single_ad_samples&amp;ciu_szs=300x250&amp;impl=s&amp;gdfp_req=1&amp;env=vp&amp;output=vast&amp;unviewed_position_start=1&amp;cust_params=deployment%3Ddevsite%26sample_ct%3Dredirecterror&amp;correlator=</a>"</p>
  
  <p>its running fine.</p>
  
  <p>I fallow the solution of this problems from here ( ref - <a href="https://groups.google.com/forum/#!topic/ima-sdk/DqE5GruzwwA" rel="nofollow noreferrer">https://groups.google.com/forum/#!topic/ima-sdk/DqE5GruzwwA</a>),</p>
  
  <p>Now its Playing only 1 ad in Android project,not multiple ad and not working for iOS at all.</p>
  
  <p>It may be that I am doing some things wrong in my iOS project but i also downloads the sample project from IMA-SDK (ref - <a href="https://github.com/googleads/googleads-ima-ios/releases" rel="nofollow noreferrer">https://github.com/googleads/googleads-ima-ios/releases</a>), But it did not help me to come out with this problems, I am getting same error.I don't know how is it running (at least 1 ad) for the Android project after changes on the server.</p>
  
  <p>Is it problems of IMA-SDK? or am I doing something wrong?</p>
  
  <p>Used IMA SDK version 3.3.1 in iOS.</p>