microHAM programmers are still working on a version of Router with
the old version of FTDI's d2xx.dll. It is slightly more involved
to isolate the developmental code (new features) than first expected.

However, they have been able to suggest some Windows settings that
appear to trigger the bugs in the FTDI code ... all of triggers
appear to relate to sleep mode. The following changes in Windows
appear to prevent Windows from triggering the bugs what cause the
lockup:

1) Always set the Windows Control Panel "Power Options" to
"High Performance" or "Maximum Performance" depending on version.
2) In the "High Performance" option
a) click on "Change Plan Settings" and set "Put the computer
to sleep" to NEVER.
b) click on "Change advanced Power Settings", select "USB
Settings," followed by "USB Selective suspend setting"
and set Selective suspend to "disabled"
3) In Windows Device Manager, Universal Serial Bus Controllers
double click on *every* USB Hub (both USB Root Hub and Generic
USB Hub), select the Power Management Tab and clear (uncheck)
the box marked "Allow the computer to turn off this device to
save power"

When closing the computer, always do a full (power off) shutdown -
do not select sleep, hibernate, or suspend.

These steps appear to prevent Windows from invoking sleep mode or
performing any hardware power down actions with the USB devices
which are what trigger the crash in d2xx.dll.

73,

... Joe Subich, W4TV
microHAM America