Troubleshooting tips for Running as a Service

I installed Openfire as a service and verified it was started but I cannot connect via client with Service started. If I stop service and start GUI, I can connect. Can anyone suggest some troubleshooting tips for the service?

I am running server v3.9.3 on Server 2008 R2 64 bit and Spark v2.6.3 on my Win 7 workstation.

Thanks,