SGE2010 firmware 18.104.22.168
Seems the SGE2010 has a problem with some special characters in passwords. I didn't test for other combinations, but if you set a password with a '+' or '&' anywere in the password, you won't be able to logon.
Issue with how my web browser (IE 8) is interperting these characters? Logging into the console with one of these passwords works.