If Server logging option is checked, the server records messages on its work to the files of MS Access database, saved in the folder, specified in the server settings. Contents of the current work log are shown in Server Log.
You can save the server work log to a text file by selecting command Server->Save Log.
To gain maximum effectiveness, it is recommended to set minimal level of work log details. Look at parts TFTP Server Settings and Configure Server for Maximum Performance to get more additional information.