Title: Invalid username
Last modified: July 14, 2019

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# Invalid username

 *  Resolved [jmill23](https://wordpress.org/support/users/jmill23/)
 * (@jmill23)
 * [6 years, 10 months ago](https://wordpress.org/support/topic/invalid-username-29/)
 * ‘m getting the message “invalid username” on my registration form – there are
   no gaps or special characters. It doesn’t seem to like capital letters – is this
   correct?

Viewing 3 replies - 1 through 3 (of 3 total)

 *  [Gabriel Berzescu](https://wordpress.org/support/users/gabrielberzescu/)
 * (@gabrielberzescu)
 * [6 years, 10 months ago](https://wordpress.org/support/topic/invalid-username-29/#post-11731495)
 * Hi there,
 * This should not happen on a regular WordPress install.
 * My guess is that it’s either because you are using WordPress MultiSite.
 * Or because of some other plugin (or even the theme, who knows). In which case,
   the recommended course of action is to briefly disable everything, check that
   this solves the problem, and then enable one by one, checking each time to see
   when the problem returns.
 * Best regards,
    Gabriel
 *  [gshuba](https://wordpress.org/support/users/gshuba/)
 * (@gshuba)
 * [6 years, 5 months ago](https://wordpress.org/support/topic/invalid-username-29/#post-12164987)
 * После автоматического обновления моего сайта не могу зайти пишет что нет такого
   имени.
 *  [Gabriel Berzescu](https://wordpress.org/support/users/gabrielberzescu/)
 * (@gabrielberzescu)
 * [6 years, 5 months ago](https://wordpress.org/support/topic/invalid-username-29/#post-12175521)
 * Hello [@gshuba](https://wordpress.org/support/users/gshuba/)
 * The translation says:
 * “After the automatic update of my site I can’t go in and it writes that there
   is no such name.”
 * And our reply says:
 * Please provide mode details.
 * Please try to connect via FTP and manually disable the plugin by renaming the
   plugin folder, does this fix the problem?
 * Best regards,
    Gabriel

Viewing 3 replies - 1 through 3 (of 3 total)

The topic ‘Invalid username’ is closed to new replies.

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## Tags

 * [register](https://wordpress.org/support/topic-tag/register/)

 * 3 replies
 * 2 participants
 * Last reply from: [Gabriel Berzescu](https://wordpress.org/support/users/gabrielberzescu/)
 * Last activity: [6 years, 5 months ago](https://wordpress.org/support/topic/invalid-username-29/#post-12175521)
 * Status: resolved