ERROR: Invalid username. Lost your password? (17 posts)

  1. chrisw12
    Posted 4 years ago #

    hey all, I usually find a solution scouring the posts already here but haven't been able to fix this. So sorry if it seems an issue well over posted but the many I saw the solutions haven't worked.

    I try to login and it gives me this message:

    ERROR: Invalid username. Lost your password?

    OK, what i've done to try fix.

    I have renamed the username and I have reset the password through phpmyadmin using the MD5 security from the drop down.

    No Fix

    I have renamed my current theme for it to default to the standard as I recently changed my theme but the blog works fine with it and you can browse it, just cant log in.

    No fix

    I have in addition renamed the plugins folder and put a dummy empty folder called plugins in its place in case a plugin was causing prob.

    No fix

    I cleared my browsers cache (chrome, FF, IE) Just says the same error, plus cookies are not enabled, they are btw.

    No fix

    I uploaded a new wp-login.php

    No fix

    I checked the site url in wp-options in the database. Correct

    No fix

    Really cannot find any other solutions and I still cant login. Now I know you might say just re-install it but i've had it up for 4-5 years now and there are so many posts, and styling I've done. I have a plugin backing it up but, my blog loads you can visit it fine http://visualisationmagazine.com/blogvisualthinkmap, I just can't login.

    I'm asking my host for help, but thought I'd post here to see if I am missing something.

    Please help

  2. websitezcom
    Posted 4 years ago #

    Have you tried making sure the email is set in the users table and then using the forgot password link?

    I can't remember specifically, but I think WordPress uses more than just MD5, but I am not positive.

  3. chrisw12
    Posted 4 years ago #

    this is hard.

    i've tried the email to reset password and it send me the link and i input it. its never said password invalid.

    i just get user invalid.

    even when i click recover password, it says enter username or email. it doesnt recognise the username there either. *i just edited in phpmyadmin*

    every post i look at to fix this is either closed or hasn't left me with answer that resolves.

    why doesnt wordpress or wp-login, recongise my username in the database? wp-config connects to the database as it sees my blog and displays post fine, just not username.

    thsnks for your suggestion websitezcom

  4. jody16
    Posted 4 years ago #


    I am having this exact problem - has anyone found a solution?

  5. chrisw12
    Posted 4 years ago #

    hi jody16,

    i didnt find a solution. i eventually had bitten the bullet and reinstalled wordpress.

    i had a plugin that backed up all my posts and did it regularly.

    so i unistalled through fantastico with my host.

    backed up all my plugins folder on the server

    then (although i was worried plugins i liked and spent ages finding wouldnt work with a new version of wordpress i just thought well i cant blog/post so somethings gotta give) installed wordpress latest version using fantastico.

    i then copied back across the plugins and thankfully they all seem to work so far.

    also, i use yourls to twitter i think it was called and that now 'automagically' as they describe it tweets. i know it is seperate but thought id mention.

    sorry cant offer more help.

  6. chrisw12
    Posted 4 years ago #

    ...oh and went to phpmyadmin and reinstalled the backed up posts.

    there were other files like hotlinked image cache HLIC and other associated files generated from plugins.


  7. prayerslayer
    Posted 4 years ago #


    I had the exact same problem and tried everything. Nothing helped though. As a result I reinstalled the WordPress blog and switched my webspace provider.

    I have an idea what the issue could have been, though. As I tried to alter my username in the database, I was unable to perform a SELECT query because I couldn't allocate enough memory. If I can't do that, how could my WordPress installation look up usernames? That's right, not at all. Contact your database support team, just in case.

    I realised it too late, this post is just for future generations.

  8. tardy
    Posted 3 years ago #

    Hi there

    I appear to be having the same problem, getting the message 'ERROR: Invalid username or e-mail wordpress'.

    I can get on the blog as usual. Everything else works!

    I've looked in one of the .php files (wp-config.php) and the username is the same there (or at least it reads 'username_wrdp1'). I've tried a variety of different configurations of the username - to no avail - I always get this message: ERROR: Invalid username or e-mail.

    What should I do now?



  9. gardella
    Posted 3 years ago #

    Hi All,
    I am having the same problem. I repeatedly get the 'invalid username' error when I try to log in. When I try the forgot password function, it tells me there is no user registered with that email. Using PHPmyAdmin I am able to confirm both username and email. I also tried resetting the password there and encrypting using md5.

    I'm not sure why WP can't look up things in the user table. As with others, the blog displays normally.

    I should also mention that my login screen appears messed up. The input fields are only 1 char wide. I haven't logged in for several months, and am not sure what version of WP I'm running.

    If anybody finds a solution, I would love to hear it.



  10. fuerzayf
    Posted 3 years ago #

    I had the same problem.

    What worked for me was changing the admin user and pass through phpmyadmin and using that.

    Hope this helps.

  11. Sue Skillen
    Posted 3 years ago #

    What is the phpmyadmin? I am having the same problem.

  12. jnhghy
    Posted 3 years ago #

    Info about phpmyadmin here.

  13. sanlan
    Posted 3 years ago #

    Same problem.... I changed email, password, username to no avail. I even created a new user in the table... the login and password retrieval is still not recognized.

  14. jimhermann
    Posted 3 years ago #


    If you use phpMyAdmin to view the entries in table wp-user, is there a record with the user_login of pain? The user_nicename probably is admin.

    It looks like a security exploit to me.



  15. Matthew Tickle
    Posted 3 years ago #

    hi - this is nearly so useful (as i cannot login suddenly but site is still up and looks fine), except my ever-so-carefully stored username and password for phpmyadmin does not work! Would it be possible to be shown exactly which file I need to edit, using my ISP's basic file manager?
    Thanks - Matthew

  16. jimhermann
    Posted 3 years ago #


    The WP username and password are not stored in an editable file. They are stored in a MySQL table.

    Your phpmyadmin username and password might be stored in the wp-config.php file. Try viewing it with your file manager.


  17. Matthew Tickle
    Posted 3 years ago #

    Brilliant, Jim - very grateful. So found my wp-config.php file and found that someone (they left a calling card, I won't credit them with their name!) had got in and changed the dbase name AND password. Once I got in, I used phpmyadmin, found the wp_users file and changed the notification email back to mine. I then went to my main "sitename"/wp-admin login page and asked for a password reset. I got email immediately and I am back in. Now I will carefully go through and change all usernames and passwords of everything I can think of to try and get control back.

    Background - I already had long, randomly generated password strings on both the ISP cpanel logins (I use hostpapa - are they vulnerable?), and on wordpress. Does anyone know how these hackers do it? Is it back to the basics of regular password refreshes?

    Jim - thanks again!

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