ARUBA NAS simultaneous-Use Problem ... Enterasys and colubris work very well

Hi, Everybody Please I need your help!! Why, When I work with enterasys or colubris NAS the simultaneous-Use work perfectly, but with ARUBA NAS not work. I need add or configure another things?, or the problem is from Aruba Manufacturer?, I need some Specific characteristics (Which) from Aruba Manufacturer?. Please someone help me!! Thank in advance Alfonso Celestino DGSCA, UNAM ___________________________________________________________ Do You Yahoo!? La mejor conexión a Internet y <b >2GB</b> extra a tu correo por $100 al mes. http://net.yahoo.com.mx