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Hello Jim,

Am 18.02.2023 um 20:37 schrieb Jim Oberholtzer <midrangel@xxxxxxxxxxxxxxxxx>:

Hmm. Maybe it’s an older version. I’ll try and download a new one.

I'm assuming people stay current with their software on iDevices. :-)

Btw, on my Mac, since upgrading to macOS 11.7 (?), Mocha 5250 and 3270 are the only applications I use which can't cope with network configuration changes while they have connections open. Of course if you change the IP address, I'd expect a "server closed connection", but not if I only change e. g. the default gateway. The peer machine is always in the local network, so the gateway entry is irrelevant. Even iACS doesn't show said behavior but is useless for me for V4.

I think Apple changed the behavior of some APIs and/or introduced new ones which spare applications from invalidating the socket file descriptor. Dunno, I'm not programming on my Mac. :-)

I reported said issue and had the usual discussion with jan f about its (un)importance in (my) everyday use. Sadly far the issue has not been fixed and probably will never be.

:wq! PoC

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