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' 400 Bad Request' after front end login

  • Profile photo of guidocastagna


    I looked hard to find a solution for this problem, but I can’t find it. Hope somebody around can help. The site involved is

    I did a clean WordPress install (3.5.1) and a clean BuddyPress install (1.7.1). Everything works smooth, but when I try to log in on the front end, I get the following error:

    Bad Request

    Your browser sent a request that this server could not understand.
    Apache/2.2.16 (Debian) Server at Port 80

    What I’ve tried so far with no success:
    – delete cookies
    – try different browsers, different computers (mac/windows)
    – disable all plugins / themes
    – reinstall files (both BuddyPress and WordPress)
    – register as a new user and confirm by clicking the link in the confirmation e-mail
    – reset the permalinks
    – making the register and activate pages, removing them and make them again
    – selecting and deselecting the ‘anyone can register’ checkbox under Settings.

    Even if I leave the username and password fields empty, I get the same HTTP 400 error (instead of being redirected and given the message I need to fill in a username and password).

    Everything else on the site works perfectly. Also, when I install a login plugin, I am able to login on the front end, no problem. This however does give users also access to the WordPress backend, which is not my intention.

    To go short: why do I get a 400 Bad Request error when trying to login at the front end of my website?

    Thanks for your help!

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  • Profile photo of guidocastagna


    Nobody can help me? :-(

    Profile photo of Hugo


    Not sure I understand the slight contradiction in ‘login on the front end’ = issues against ‘add a login plugin’ = no issues.

    What do your server error logs say?

Viewing 2 replies - 1 through 2 (of 2 total)
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