I’m generally skeptical of using Network framework for multicasts. It should work in general, but: There are a bunch of things it can’t do. And even when it can, you often hit weird edge cases. My general advice — and this makes me very sad — is to stick with BSD Sockets for broadcasts and multicasts. See Extra-ordinary Networking > Broadcasts and Multicasts, Hints and Tips. Having said that, this is weird: [quote='815127021, Anshuman1989, /thread/815127, /profile/Anshuman1989'] Reinstalling the app fixes the issue [/quote] This isn’t a standard pathology I see with Network framework’s multicast support and you are right to suspect local network privacy in that case. So let’s dig into that. First up, you’ve signed your app with the the com.apple.developer.networking.multicast entitlement, right? You didn’t mention that, and it’s very important. Share and Enjoy — Quinn “The Eskimo!” @ Developer Technical Support @ Apple let myEmail = eskimo + 1 + @ + apple.com
Topic:
App & System Services
SubTopic:
Networking