Username too long? Share on Facebook Post on reddit Tweet on Twitter Share on LinkedIn Home › Forums › Server Operating Systems › Windows Server 2000 / 2003 / 2003 R2 › Username too long? This topic has 7 replies, 3 voices, and was last updated 14 years, 4 months ago by JeremyW. Viewing 1 post (of 1 total) Author Posts JDMilsMember May 28, 2006 at 9:04 pm #112402 I created a new user “TerminalServerReporter” but am unable to login with that username. I checked the AD Users & Computers setup: Display Name: Terminal Server Reporter User Logon Name: TerminalServerReporter User Logon Name (pre-Windows 2000): TerminalServerReport Subsequently, I found that if I use the name “TerminalServerReport”, it logs in OK. So is there a 20-character limit to usernames? Windows2003 Server SP1. Author Posts Viewing 1 post (of 1 total) You must be logged in to reply to this topic.