We have a problem where on the UWP platform all network access using HttpClient or WebClient is having DNS issues and throwing exceptions, the exceptions get caught but this causes the loading to be very slow since we have to retry all the network activity until we the DNS starts working (can take as long as 5 minutes after the scene load), also the exceptions being thrown and caught cause the application to run very sluggishly on UWP because exception throwing seems to cause performance problems in UWP. I've created a small test case that runs a bunch of web requests through http client and web client and times their performance during the awake function of a mono behavior, and then lets you load a scene that will do it again. I submitted this in case 1169779. So far I've tested this in Unity 2019.1.8, I plan on trying the latest 2019.1.10 and also the latest beta and alpha versions to see if it's any different/better in any of those. Thanks.