The timer refresh rate for the PC's processor may be too fast for SunTouch to keep up.  SunTouch is a 27 year old software platform that used the clock speed of the PC to determine when to get timer information.  You will need to tell SunTouch to wait almost a second in between attempts to talk to the timer.

  1. Open SunTouch and navigate to Setup > Stations.
  2. Click on the Timer Setup tab.
  3. Click on the Advanced Settings button.
  4. Change the Pause to 9999
    Change the Retry Count to 6
    Change the Read Again Count to 3
    Change the Pause 2 to 3
  5. Click Save.
  6. Close SalonTouch and reopen it.