ARG! Right password, but can't get admin on my server

[NiNe]

I made this lan server for me and my brother. We wanted to try some stages I downloaded, so I tried to connect as admin. First I tried "connect as admin" but I didn't make it, I thought I had set the IP wrong. So i tried setadmin, and join on the server itself, but there I understood the IP wasn't the problem, it was the password. I wrote the password 3 times, then I made a new password, which was just the key "A" then started the server again. I am pretty sure I know how A is writtin, but the server kicked me again! WHAT THE F***!!?
I use a mac and the server is set up on the start up of assault cube. I have set the admin password there. Please help me :'(