I even uninstall ISA, I uninstall CLASSES from AD, I wait till full sincronization, I install classes again and I install ISA again asa ARRYA and got the same error. Ohh, god. (meaning Gates) As I told you I fight with this from 2 months and I pay the one who solve. Yours sincerely, Bogdan Florin manager BizarNet - Satellite Internet Services www.bizarnet.ro phone: +40-264-426507 gsm: : +40-740-074031 gsm: : +40-788-074031 fax: +40-264-452207