Strange with Fastpath service and Spark

Dear All,

I got a strange problem with Fastpath service, i'm curenntly using openfire 3.6.4 and Spark 2.5.8 on Linux

i already have a Fastpath configuration like group and user for helpdesk example,

the problem is, if i running Spark using ordinary user the Workgroup member in Fastpath wont appear always "waiting for member", but in session menus i already login.

and if i running the Spark agent with a root user,Fastpath recognize me and i can use the service... strange

does anyone know about this problem? i think its a port problem,but i dont know which port Spark used.

Thanks.

note: i apologize for my bad english