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.NET 9: Zeroconf discovery is broken #110443
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Tagging subscribers to this area: @dotnet/ncl |
Related novotnyllc/Zeroconf#266 |
A change was just made in Zeroconf that fixes the problem: novotnyllc/Zeroconf#266 But I'd like to know what changed in .NET 9 that prompted this. |
Briefly looking at the Zeroconf, I think #89990 is the culprit. We now return more interfaces and some of them may not have IPv4 e.g. trying to fetch that blindly can fail and lead to problems. If anything, it would be interesting to know on what exact interface the app chokes. |
This issue has been marked |
Description
Trying to do a Zeroconf host disccovery results in the following error. This used to work on .NET 8:
NetworkInformationException: The requested protocol has not been configured into the system, or no implementation for it exists.
Reproduction Steps
Expected behavior
The list of available hosts will be returned in a list.
Actual behavior
Resolution fails with the following exception: "NetworkInformationException: The requested protocol has not been configured into the system, or no implementation for it exists."
Regression?
This was working in .NET 8.
Known Workarounds
No response
Configuration
.NET runtime 9.0.0
Windows 10.0.19045
x64
Other information
No response
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