DPA Application will not connect to datastore service

I have done all the usual connectivity checks, and I can't seem to get the application to connect to the datastore. ping tests work, there are no firewalls on either server, they are on the same portgroup on the same ESXi host. The install and configure went fine, but connecting from the web portal left me with the " Data Protection Advisor service startup failed. Please contact administrator." error.

further digging seems to indicate a communication issue, but i can't figure out what to do next in troubleshooting this. If anyone had any idea what I could be missing, or what to do next to try and troubleshoot that would be greatly appreciated.

From the datastore server:

[root@dpa-data1 logs]# dpa.sh ds  con

EMC Data Protection Advisor

[INFO] Service Bind Address(es)    : 10.30.8.231

       Client(s) Address(es)       : 127.0.0.1/32

                                     ::1/128

                                     10.30.8.230/32

                                     10.30.8.231/32

                                     10.30.8.231/32

       Replication                 : MASTER

Command completed successfully.

Completed in : 39ms

[root@dpa-data1 logs]# dpa.sh svc start

EMC Data Protection Advisor

Start command for the datastore service completed successfully

Start command for the agent service completed successfully

Command completed successfully.

Completed in : 21.3secs

From the Application server:

dpa.sh svc status

EMC Data Protection Advisor

The status of the Application Service is STOPPED

The status of the Agent Service is STOPPED

Command completed successfully.

Completed in : 171ms

[root@dpa-app1 DPA]# dpa.sh svc start

EMC Data Protection Advisor

Failed to contact datastore service on host: 10.30.8.231

[ERROR] Failed to validate datastore availability. Please check connectivity.

Start command for the agent service completed successfully

Command completed successfully.

Completed in : 15.3secs

[root@dpa-app1 DPA]# dpa.sh svc status

EMC Data Protection Advisor

The status of the Application Service is STOPPED

The status of the Agent Service is RUNNING

Command completed successfully.

[root@dpa-app1 DPA]# dpa.sh app con

EMC Data Protection Advisor

[INFO] Bind Address      : 0.0.0.0

[INFO] Datastore Service : 10.30.8.231

[INFO] Operation Mode    : STANDALONE

Command completed successfully.