[Coco] Error running DriveWire4

[Evie]

I'm trying to get my Windows PC hooked up to my CoCo3 via DriveWire.

I built a cable, checked it twice, and hooked up my CoCo3 to a RS232 to USB
adapter that works great with Apple ADT PRO. I shorted the optional "turbo
pin".

As soon as I boot the *dw3dos_dsk_cc3 *program on my CoCo, DW4 server
crashes with this error:

#  EXCEPTION_ACCESS_VIOLATION (0xc0000005) at pc=0x0000000180005156,
pid=11148, tid=0x00000000000037b8
#
# JRE version: Java(TM) SE Runtime Environment (8.0_351-b10) (build
1.8.0_351-b10)
# Java VM: Java HotSpot(TM) 64-Bit Server VM (25.351-b10 mixed mode
windows-amd64 compressed oops)
# Problematic frame:
# C  [rxtxSerial.dll+0x5156]

I've also tried DW3 server and it says there's a checksum error. Any
suggestions?