An issue occurs where the user receives a chronic verification code error, this appears to be caused by Sync profile changes made in GoldMine on the undocked users machine:
In the GoldSync Administration center on the Main GoldMine Server, right click on the user profile and select Generate Verification Code, provide the code to the Remote User. They will enter this new code when they sync again.
You should also delete any old Transfer Sets both on the server and on the remote machine before syncing.