Striketerm UP9600 freezes with WiModem

[admin]

You have to set the FLOW CONTROL (not to be confused with transfer protocol) to Xon/Xoff with Striketerm - that actually selects RTS/CTS.  There is a bug in Strikesterm where these flow control options are backwards and this causes the freezing.  It has nothing to do with the WiModem, it occurs on any user port serial device as well.