Client Automation - All Versions.
Sometimes if there are network problem/congestion, some udp parcels could be lost.
This could cause problem for some Client Automation components and specially DSM Remote Explorer.
Usage of TCP (instead UDP) is more reliable as parcel is resent in cause of loss.
On machine with DSM Remote Explorer which have the problem, execute this to disable CAM port UDP 4104. CAM will use port TCP 4105
Remark : Port TCP 4105 should be opened between itself and Domain Manager and between itself and its Scalability Server.