Hi, I am IT engineer, we have nearly 600 machines is domain, but only for 2-3 machines only, i need to intermittently add in domain again & again. Means, User face login problem in domain. then m/c need to remove & again add in domain. After adding in domain, in works for 2-3 days only Then user faces same problem need to add in domain again intermittent problme can anyone help me on this pls???