I currently have a very hard time patching whenever a new patch comes out (which I'm thankful is quite often - don't get me wrong). What happens is Impulse sits on "preparing download" forever. I've tried two approaches, just let it sit there for however long it takes (overnight didn't work) or just keep cancel/restarting the download. It seems that the cancel/retry method will eventually get through and start downloading, but it often takes upwards of 50+ tries.
Is this just due to a large volume of people also trying to get the patch? I've never had issues downloading any updates for Sins/Entrenchment.