I think there are two ways to set up the network on W7 and the way I have it is that my W7 is not part of the group network of the other computers, but it communicates with the other computers nonetheless.
Sorry I can't be more helpful on this.
Do you have the MOL receive set up correctly on the slave computer(s)?
Ialso had problems.
Not only with midioverlan but with networking in general.
Window and mac didn't see each other. I had to restart both computers several times to make midioverlan and syngery work.
It wasn't a setting because it did work, it just wasn't reliable and in a tight dealine I almost went crazy restarting and troubleshooting.
I just gave up. I simply cannot stand windows.
I also have a mac g5 and a MacBook and so far I haven't ran Into networking problems. The issue was windows7 (before xp)
yes it did work but I had so many stupid issues , not only networking,
that I gave up.
I'm getting a used quad macpro which can load up to32 or more
and selll at a nice price used.
Btw vep didn't work either. It does w 16 inst midi ch but another instance would crash both computers