Solution:
On the monitored machine, change the sharing and security modes of the local account to Classic mode. Control Panel-> Administrative Tools-> Local Security Policies-> network access: sharing and security modes of Local Accounts-> Classic mode.
Preparations before monitoring connections:
First, make sure that the following two services are enabled for the monitored Windows System: Remote Procedure Call (RPC) and Remote Registry Service
On the monitored Windows Server, right-click my computer and choose manage> shared folder. The shared folder C $ is required. (If you do not manually add the folder)
Then ensure that you run the program on the host where LR is installed. enter \ IP address of the monitored MACHINE \ C $ and then enter the Administrator account and password. If you can see the C drive of the monitored machine, it means you have obtained the Administrator permission of the machine, you can use lr to connect.
Reprinted: http://www.cnblogs.com/preftest/archive/2010/08/02/1790569.html