Please try starting the service manually. Please go to where you have iRacing installed on your computer (by default for Steam users this is C:\Program Files (x86)\Steam\steamapps\common folder), in the iRacing folder, look for the file called 'Start_iRacingService.bat' and double click that to start the service up manually.
![image image](https://s3.amazonaws.com/cdn.freshdesk.com/data/helpdesk/attachments/production/31040216983/original/XFTB0W08MtOjsi_AzsuHOIo8OhvT25shzw.png?1653506943)
You should then see a black box open and then close. After that, please re-launch iRacing.