As a reference, have a look at an old archived thread I wrote quite some time ago, How I created a VMware Workstation Network Boot Disk. You might be able to glean something from the listed settings to help rectify the issue.
I know this is an old post, but if you are still looking for help let me know as I have a ton of experience working with MajorTCP.
For some reason, I cannot send CTRL-C a message. But I would really appreciate a little guidance with MajorBBS, Vircom, and DOS networking. So if you see this, help an old SysOp out.