[TenTec] Omni VI+ to computer issue

[Jim Allen]

I had my Omni VI Opt 3 hooked to the computer and, thanks to the settings
provided here, had them talking, and Win-EQF logging and telnet-ting, and
controlling the radio.

About that time I bought a Omni VI+ which has arrived and now in service.
I set up the radio as before, and am getting a TNC error, no matter which
port I select.

The manual sheds no light on this that I can discern, nor does the Win-EQF
documentation.  Any pointers?

TIA

73 de W6OGC  Jim Allen