I do not use USB-serial converter. The PC has a physical serial port which is COM1
I have run device manager after boot. It reports COM1 as the only COM port and it is running properly.
I have run AP Telescope Setup as normal or as administrator immediate after reboot - in both cases it detects the mount normally.
I have run APJog as normal or as administrator immediate after reboot - the driver fails to detect the mount on the first attempt.
Is there a log file somewhere that may be of use?
Perhaps it is a problem specific to my hardware?