I have a CISCO SGE2000 in standalone mode with other 4 switches (not CISCO) connected to it through optical links. I setted the ipv4 address on SGE2000 and the admin password. It works without any problem but sumetimes and suddenly It seems to reset itself. In other words the ipv4 is resetted to factory default a the password too. I can't understand why? Thanks you in advance.
Unless you're forgetting to write the config back then that sounds properly broken, have you asked Cisco themselves? I think you need to as I think you may have dead flash or something on the actual switch sorry.