What are the requirements for the myTeamspeak account name?

[MYTEAMSPEAK.ONLINE]

Ts5 Bug report

Thank you for the feedback. The system to rename yourself is temporarily disabled. The only strange thing here is the error message. The client does not know yet when system for is not active. The messages are delayed when it takes to long from you to the server and back to you. Maybe we can improve this delay a bit, but can not promise anything. / 4. Will check this tomorrow when back in the office.