After the oBIX integration, when connecting to an R2 host with the NiagaraAX client, if you receive errors similar to:

HTTP Error 503:Service Unavailable

this indicates that all available web service threads on the R2 host are currently being used.

Typically, you can fix this by editing an entry in the system.properties file on the R2 host:

webServer.threadPoolSize=n

The value of this thread pool defaults to 15 in an R2 JACE, but can safely be increased to 30.