Hi Dave,
your build fixes the issue for me as well, great!
What still doesn't work, is dosbox_rec.exe, The "Recompiling" variant of dosbox.exe. I asked Jochen about the difference to the normal version, but can't remember/find his explanation.
BTW: I have a full-featured installer ready since last summer. I have to contact Jochen again.
To your question: No, I don't have tested DOSBox/2 over network. In fact, I don't use DOSBox/2 at all, just made the install scripts.