I have installed Virtual II on a new MacBook (OS 10.12.4)
All is working fine.
I installed in Slot 1 and 2 (tested both) the SSC.
Connected a USB to Serial Adapter. The Adapter is recognized by the Mac.
I connected it to a modem.
Then I started ProTerm - installed the modem (same installation with that modem that works on a real Apple IIe perfectly all right).
On Virtual II ProTerm can not initialize the modem. If I put it "online" and dial out - the modem dials and makes a connection, but ProTerm is not switching into Terminal mode.
I tried all functions in Virtual II for the SSC and the USB connection.
Also put the firewall on and off on the MacBook and allowed all incoming connections for Virtual II.
What can I do now?