Almost all tests involving networking fail in that leg. The test runs have been disabled temporarily in #45529

An example in https://dnceng.visualstudio.com/public/_build/results?buildId=906071&view=ms.vss-test-web.build-test-results-tab

[6:10 PM] Alexander Köplinger
hmm this might be related to the helix rollout since it overlaps with when the rollout happened. all of the workitems have something to do with networking or hitting some http, and some have exceptions when trying to instantiante MsQuicApi
it's possible that a new Windows version got rolled out that enables http3/quic somehow and that triggers this codepath

Exploratory PR in #45520