Issue
Follow step below for troubleshooting .
Open Sage Payroll > Choose Sage Payroll Hrms .
Housekeeping > Setup > General Setup .
Click on Sharing tab on tap menu.
In Network section enter Server IP Address and Port Number.
Your can use one of port number as listed below :
8900
8901
8902
8903
8904
By default it can use 8900.