AutoConnectionSourceDUnitTest: testDynamicallyFindLocators failed with Unable to connect to any locators in the list

org.apache.geode.cache.client.internal.AutoConnectionSourceDUnitTest > testDynamicallyFindLocators FAILED
org.apache.geode.test.dunit.RMIException: While invoking org.apache.geode.cache.client.internal.AutoConnectionSourceDUnitTest$3.call in VM 2 running on Host 97e556d10832 with 4 VMs
at org.apache.geode.test.dunit.VM.invoke(VM.java:387)
at org.apache.geode.test.dunit.VM.invoke(VM.java:357)
at org.apache.geode.test.dunit.VM.invoke(VM.java:325)
at org.apache.geode.cache.client.internal.AutoConnectionSourceDUnitTest.putInVM(AutoConnectionSourceDUnitTest.java:470)
at org.apache.geode.cache.client.internal.AutoConnectionSourceDUnitTest.putAndWaitForSuccess(AutoConnectionSourceDUnitTest.java:448)
at org.apache.geode.cache.client.internal.AutoConnectionSourceDUnitTest.testDynamicallyFindLocators(AutoConnectionSourceDUnitTest.java:199)

Caused by:
org.apache.geode.cache.client.NoAvailableLocatorsException: Unable to connect to any locators in the list [LocatorAddress [socketInetAddress=97e556d10832/172.17.0.4:26078, hostname=97e556d10832, isIpString=false], LocatorAddress [socketInetAddress=97e556d10832/172.17.0.4:29796, hostname=172.17.0.4, isIpString=true]]