Title: 400 Bad Request error Last modified: December 10, 2021 --- # 400 Bad Request error * Resolved [jerucker](https://wordpress.org/support/users/jerucker/) * (@jerucker) * [4 years, 5 months ago](https://wordpress.org/support/topic/400-bad-request-error-6/) * I am using cleantalk and it is very effective with stopping spam. The 1 problem that I am having is that it is creating 400 Bad Request errors. I was not sure what was causing the problem as I noticed that I was having this same problem on 1 of my other wordpress sites also. I recently installed clean talk and registered 1 of my new site and as soon as I activated the plugin the 400 errors started. Can anyone help me with this * Thanks * The page I need help with: _[[log in](https://login.wordpress.org/?redirect_to=https%3A%2F%2Fwordpress.org%2Fsupport%2Ftopic%2F400-bad-request-error-6%2F%3Foutput_format%3Dmd&locale=en_US) to see the link]_ Viewing 15 replies - 1 through 15 (of 18 total) 1 [2](https://wordpress.org/support/topic/400-bad-request-error-6/page/2/?output_format=md) [→](https://wordpress.org/support/topic/400-bad-request-error-6/page/2/?output_format=md) * Plugin Support [katereji](https://wordpress.org/support/users/katereji/) * (@katereji) * [4 years, 5 months ago](https://wordpress.org/support/topic/400-bad-request-error-6/#post-15150623) * Hello. We are working on resolving this issue. Could you please try to enable the option “Use alternative mechanism for cookies” in the Anti-Spam plugin settings? It should help. Let us know the results, please. * [SergeM](https://wordpress.org/support/users/serge00/) * (@serge00) * [4 years, 5 months ago](https://wordpress.org/support/topic/400-bad-request-error-6/#post-15150976) * Thank you for waiting. We have fixed the issue. Please, set the option “”””Set cookies”””” to “”””On”””” again: • WordPress Admin Page —> Settings —> Anti-Spam by CleanTalk —> Advanced settings —> set the option “”””Set cookies”””” to “””” On”””” —> Save Changes. Is everything okay now? Kind regards. * Thread Starter [jerucker](https://wordpress.org/support/users/jerucker/) * (@jerucker) * [4 years, 5 months ago](https://wordpress.org/support/topic/400-bad-request-error-6/#post-15153131) * Hi guys it is still happening – [https://www.awesomescreenshot.com/video/6391156?key=8855ee1ea82bac2b4b8dcfca68a492ae](https://www.awesomescreenshot.com/video/6391156?key=8855ee1ea82bac2b4b8dcfca68a492ae) * Here are my setting – [https://tinyurl.com/y4o3g6gl](https://tinyurl.com/y4o3g6gl) * Plugin Support [katereji](https://wordpress.org/support/users/katereji/) * (@katereji) * [4 years, 5 months ago](https://wordpress.org/support/topic/400-bad-request-error-6/#post-15153270) * Thank you for your feedback. We’ll check it ASAP. * Plugin Author [glomberg](https://wordpress.org/support/users/glomberg/) * (@glomberg) * [4 years, 5 months ago](https://wordpress.org/support/topic/400-bad-request-error-6/#post-15155894) * Hello [@jerucker](https://wordpress.org/support/users/jerucker/) , please, try to activate the alternative cookies as a temporary solution [https://wordpress.org/support/topic/400-bad-request-error-6/#post-15150623](https://wordpress.org/support/topic/400-bad-request-error-6/#post-15150623) * Plugin Support [amagsumov](https://wordpress.org/support/users/amagsumov/) * (@amagsumov) * [4 years, 5 months ago](https://wordpress.org/support/topic/400-bad-request-error-6/#post-15158622) * Hello [@littleen](https://wordpress.org/support/users/littleen/) * We have fixed the problem. All the changes will be included in the next stable release. * Please, reinstall the plugin. ( Download link: [https://github.com/CleanTalk/wordpress-antispam/releases/download/dev-version/cleantalk-spam-protect.zip](https://github.com/CleanTalk/wordpress-antispam/releases/download/dev-version/cleantalk-spam-protect.zip)) * Here is a guide for you: * Go to WordPress Administrator Panel —> Plugins. Find the plugin “Spam Protection by CleanTalk” —> Deactivate. After the automatic page refreshing find the plugin again “Spam Protection by CleanTalk” —> Delete. Confirm “Yes, delete these files”. Download the plugin archive from the link above. Go to Plugins —> Add New —> Upload Plugin. Choose the downloaded archive and press “Install Now”. * Contact us if you have any questions. * Best wishes, * Thread Starter [jerucker](https://wordpress.org/support/users/jerucker/) * (@jerucker) * [4 years, 5 months ago](https://wordpress.org/support/topic/400-bad-request-error-6/#post-15160508) * I was able to set up the plugin but I had to set cookies to use alternative methods to stop the 400 errors – [https://tinyurl.com/y66jz36w](https://tinyurl.com/y66jz36w) * thanks * Plugin Support [katereji](https://wordpress.org/support/users/katereji/) * (@katereji) * [4 years, 5 months ago](https://wordpress.org/support/topic/400-bad-request-error-6/#post-15160553) * HEllo [@jerucker](https://wordpress.org/support/users/jerucker/) Thank you for the info. We’ll continue our work to resolve the issue. * [SergeM](https://wordpress.org/support/users/serge00/) * (@serge00) * [4 years, 5 months ago](https://wordpress.org/support/topic/400-bad-request-error-6/#post-15161308) * [@jerucker](https://wordpress.org/support/users/jerucker/), please copy-paste your question here in our private Ticket System: [https://cleantalk.org/my/support/open](https://cleantalk.org/my/support/open) * We need more details of the issue to fix it. * [fizzpopmedia](https://wordpress.org/support/users/fizzpopmedia/) * (@fizzpopmedia) * [4 years, 4 months ago](https://wordpress.org/support/topic/400-bad-request-error-6/#post-15170694) * Has this been resolved on the latest release? Ive just spent 10-15 hours with divi and wpengine trying to figure out this nightmare. We just deactived it, and finally the nightmare is over. * Plugin Support [amagsumov](https://wordpress.org/support/users/amagsumov/) * (@amagsumov) * [4 years, 4 months ago](https://wordpress.org/support/topic/400-bad-request-error-6/#post-15170810) * Hello [@fizzpopmedia](https://wordpress.org/support/users/fizzpopmedia/) * The issue has been resolved in the last 5.168 version. * Please update the plugin. The guide: [https://cleantalk.org/help/update-wordpress](https://cleantalk.org/help/update-wordpress) * Did it help? * [fizzpopmedia](https://wordpress.org/support/users/fizzpopmedia/) * (@fizzpopmedia) * [4 years, 4 months ago](https://wordpress.org/support/topic/400-bad-request-error-6/#post-15171487) * UPdated the plugin to the latest version, re activated it, and within a minute it was back to * 400 Bad Request Request Header Or Cookie Too Large nginx * I deactivated it and its back up and running again. anything beyond just updated it that needs to be done to make this problem go away? * THanks, BRian * [fizzpopmedia](https://wordpress.org/support/users/fizzpopmedia/) * (@fizzpopmedia) * [4 years, 4 months ago](https://wordpress.org/support/topic/400-bad-request-error-6/#post-15171493) * Also one thing I noticed.. When I clear out cookies for the site. I have a dev and staging version ive been ussing to try and figure this out that has the older version of clean talk.. There is only 20 cookies to clear. as soon as I turn your plugin back on, and the problem starts again. I go to chrome settings to delete cookies, and there is instantly 120 cookies to delete. Hope this helps with a solution * Plugin Support [sergecleantalk](https://wordpress.org/support/users/sergecleantalk/) * (@sergecleantalk) * [4 years, 4 months ago](https://wordpress.org/support/topic/400-bad-request-error-6/#post-15172143) * [@fizzpopmedia](https://wordpress.org/support/users/fizzpopmedia/), please copy- paste your question here in our private Ticket System: [https://cleantalk.org/my/support/open](https://cleantalk.org/my/support/open) * We need more details of the issue to fix it. * [5bwg5](https://wordpress.org/support/users/5bwg5/) * (@5bwg5) * [4 years, 4 months ago](https://wordpress.org/support/topic/400-bad-request-error-6/#post-15182352) * Having the same problem. Your plugin is dropping a boatload of cookies and exceeding the supported header size on Apache. The problem is nasty. Existing clients with 100+ of your cookies continue to be broken until they manually purge or we increase the accepted header size. What is the potential upper limit of size of cookies with the correct broken code in a browser request? Viewing 15 replies - 1 through 15 (of 18 total) 1 [2](https://wordpress.org/support/topic/400-bad-request-error-6/page/2/?output_format=md) [→](https://wordpress.org/support/topic/400-bad-request-error-6/page/2/?output_format=md) The topic ‘400 Bad Request error’ is closed to new replies. * ![](https://ps.w.org/cleantalk-spam-protect/assets/icon-256x256.png?rev=1637702) * [Spam protection, Honeypot, Anti-Spam by CleanTalk](https://wordpress.org/plugins/cleantalk-spam-protect/) * [Frequently Asked Questions](https://wordpress.org/plugins/cleantalk-spam-protect/#faq) * [Support Threads](https://wordpress.org/support/plugin/cleantalk-spam-protect/) * [Active Topics](https://wordpress.org/support/plugin/cleantalk-spam-protect/active/) * [Unresolved Topics](https://wordpress.org/support/plugin/cleantalk-spam-protect/unresolved/) * [Reviews](https://wordpress.org/support/plugin/cleantalk-spam-protect/reviews/) ## Tags * [400 Bad Request](https://wordpress.org/support/topic-tag/400-bad-request/) * 18 replies * 8 participants * Last reply from: [sergecleantalk](https://wordpress.org/support/users/sergecleantalk/) * Last activity: [4 years, 4 months ago](https://wordpress.org/support/topic/400-bad-request-error-6/page/2/#post-15192868) * Status: resolved