https://bugs.winehq.org/show_bug.cgi?id=42412
--- Comment #42 from bobben@wigilius.se --- Have managed to get BasiliskII for Windows to run in Wine and that also uses Slirp, actually the Slirp code in WinUAE is from BasiliskII.
And I can download both from local file server (FTP) and internet and the files do not seem to get corrupted, since StuffitExpander can unpack them without errors.
So, it starts to seem more and more likely that the problem is in WinUAE, that only gets triggered in Wine for Mac...
It hasn't gotten something to do with pcap support in Wine? Because this can be seen in winuaebootlog.txt: uaenet: npcap/winpcap not installed (packet.dll) If slirp needs it somehow and Mac Wine version doesn't have same implementation completeness as Wine Linux?