[JBoss] Infinispan - ISPN000476: Timed out waiting for responses for request

I'm creating a CacheService Singleton on a JBoss 7.2 server using infinispan 7.2.5 and I'm getting timeout errors during communication. I tried increasing the timeout from the default to 35000 milliseconds but that didn't help. Is there anything that stands out about my config that may cause these errors?

Error

javax.ejb.EJBTransactionRolledbackException: ISPN000476: Timed out waiting for responses for request 387 from devserver-44351
.....
Caused by: org.infinispan.util.concurrent.TimeoutException: ISPN000476: Timed out waiting for responses for request 387 from devserver-44351


Startup Code

@PostConstruct
void start() {
logger.info("Starting cache service...");
GlobalConfiguration gc = new GlobalConfigurationBuilder().transport().defaultTransport()
.globalJmxStatistics().allowDuplicateDomains(true).cacheManagerName("Cache").build();
Configuration config = new ConfigurationBuilder().clustering().cacheMode(CacheMode.REPL_SYNC).sync().replTimeout(35000).build();

cacheManager = new DefaultCacheManager(gc);
cacheManager.defineConfiguration("times", config);

lastGetTimesCache = cacheManager.getCache("times");
logger.info("Cache service started!");
}

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