NAS - Comerce Portal

Hello. I new in commerce portal 3.60, but te NAS don’t startup. The event log viewer show me two diferents errors (sometimes one and sometimes two): 1º It show me that the number of users is the maximum. You hope that someone goes out of the application. 2º TCP TIMEOUT error in conection. I have tried to install and reinstall a lot of times but the error always show and I don’t know that provokes the errors. Thanks.