The MATLAB Distributed Computing Server service was launched, but failed to start

Hi fellows, I am trying to build a cluster using mdce in Matlab 2011a. I can successfully add four other computers into the cluster, but unfortunately my own computer caused some problem. Please see the attached picture below.

Interestingly, there was no problem one month ago. During the following period, some windows 7 updates has been installed. To exclude possible troubles from these updates, I uninstalled all of them. However, this did not solve the problem. When trying to start the mdce service, I got the following error message:

I searched and tried some solution advice from http://www.mathworks.com/matlabcentral/answers/168414-why-do-i-receive-an-error-that-the-matlab-distributed-computing-server-service-launched-but-failed-t

But it did not work either.

Could anyone help me out? Many thanks.