403 Forbidden – You don’t have permission to access /wp-admin/admin-ajax.php on this server

This sounds like it’s probably caused by mod-evasive (or similar) plugin in Apache (or similar), blocking multiple consecutive requests as it thinks you are trying to run a denial of service (DOS) attack against the server. Try disabling any security plugins (Apache / web server ones, not WordPr

Related Posts:

  1. How to stop wordpress from changing default .htaccess permissions to 444
  2. Lock access to plugin options
  3. Wordress admin page is fetching error You do not have sufficient permissions to access this page.
  4. to perform the requested action wordpress needs to access your web server. please enter your ftp
  5. Prompted for FTP details even with FS_DIRECT set to true
  6. How to check if user is in back end?
  7. Is there a way (plugin?) to restrict a user to being able to edit just one page?
  8. Security and .htaccess
  9. Can’t install new plugins because of the error “Could not create directory”
  10. Cannot install plugins even though www-data has write permissions
  11. How does WordPress update plugins, without running into permissions issues?
  12. Plugins won’t auto-update on IIS
  13. Add .html extension to custom post type taxonomies
  14. Leverage browser caching not working after updating .htaccess
  15. How to install WordPress Multisite with different domains under the same subdirectory?
  16. WordPress roles – Protect administrator role
  17. Error Message from W3 Total Cache when .htaccess Rules Cannot Be Modified? [closed]
  18. htaccess and wordpress config files are regularly over written
  19. Could not create directory
  20. Multisite Backup Plugin [closed]
  21. Creating Custom Roles for use on a WordPress Multi-site Instance?
  22. Why does deactivating a plugin cause error: “You do not have sufficient permissions to access this page”?
  23. Can’t use the built-in wordpress install/upgrade plugin feature [closed]
  24. Plugin/Folder permission issues with Azure
  25. How create a role with admin capability less 1 or 2?
  26. 500 Internal Server Error when updating htaccess
  27. Write to / remove from default .htaccess file from plugin?
  28. Plugin to restrict access to pages in wp-admin
  29. Changed permalink structure. Need help with redirecting old posts
  30. Landing Page Redirect Chain | http->https->https www
  31. Possible htaccess configuration issue for HTTPS websites by WP Fastest Cache plugin? [closed]
  32. The safest way to automate WordPress backups
  33. How to create user groups and allow custom posts and plugin modify/access to specific group?
  34. Prevent WordPress installing plugins and themes via Admin
  35. User Session and Stored Cookies not get removed
  36. Plugin updates change folder permissions
  37. WordPress Backend HA (Automatic failover)
  38. admin-ajax.php warning max input vars exceeded on layered pop plugins [closed]
  39. DOMAIN_CURRENT_SITE constant being regularly overridden [closed]
  40. Reoccurring 404 Errors on all subpages
  41. plugin links not working [closed]
  42. Can’t Install Standard Plugins on a Local MAMP installation
  43. Redirect to another page using contact form 7? [closed]
  44. Batch update of WordPress Plugins
  45. How to backup single post in wordpress [closed]
  46. Why is the ‘Gutenberg’ Plugin generating an ‘Inconsistent File Permissions’ error when other Plugins, with the same permissions, do not?
  47. How to replace website?
  48. Custom url rewriting
  49. Timed content and flagging content as viewed by user?
  50. WordPress won’t allow for updates to plugins or WordPress Core
  51. WordPress permissions error with admin account
  52. Can I restore a plugin that was accidentally deleted? (on localhost)
  53. Automatic WordPress Clone Backup
  54. Plugins & backup not working correctly on new Digital Ocean server
  55. WordPress rewrite rules not working
  56. Do rewrites added with add_rewrite_rule() persist after plugin deletion?
  57. Give access of horizontal scroling plugin to user role editor
  58. How to hide plugin options for editors via functions.php
  59. how long do restored versions take to go live?
  60. Plugin or ways to limit number of users logging in the website,
  61. Add a parameter at the end of the url and prettify
  62. www redirects to another directory in wordpress
  63. See which user role / capability is needed to use a plugin
  64. How to generate expiring URL of the page?
  65. Blank dashboard with no access
  66. How to allow URL with filename & extension in wordpress?
  67. Unable to download backup file created using All in One WP Migration WordPress plugin
  68. How to make this custom capability work? [duplicate]
  69. How to create different views for different user roles?
  70. ERROR message: “The site is experiencing technical difficulties. Please check your site admin email inbox for instructions.”
  71. How to make a plugin api route have permission?
  72. URL Rewrite 404
  73. How to show private pages based on a user’s role?
  74. WP Plugin permissions – create new files
  75. How do I restrict a second admin certain access?
  76. Permission Issues regarding Plugin updates & FTP transfers
  77. Cron jobs in wordpress
  78. htaccess question and plugins.php
  79. Help Code Review – I need to write on .htaccess file from theme’s function.php
  80. WordPress Plugin Install / Update Problem
  81. Admin page and admin menu. Permissions plugin
  82. SSH vs WordPress
  83. Site not displaying correctly when re-directing from root to sub-directory
  84. How To Rewrite WordPress Pages URL Only?
  85. Custom User Role
  86. Apache rewrite rules and wordpress problem
  87. Plugin (smart archives reloaded) crashed site / no access on admin panel
  88. Plugin not installing properly, functions being redeclared
  89. incorrect path of plugin dir on network
  90. Problem with permissions in wp-content/plugins
  91. Making plugin to use different table prefix cause permission problem
  92. How to block external download link access if visitor not referred from WP?
  93. My WP site and password was hacked, what to do? [closed]
  94. How to give different user access to different people?
  95. How to give access to the particular page in wordpress for specific username/email NOT roles [closed]
  96. How to rewrite URL using .htaccess in WordPress Plugin
  97. Gravity Forms and Gravity View Permissions
  98. restore backup full content or just specific folders
  99. Rewrite Rule in htaccess convert query string into slashes
  100. Oxygen plugin wordpress stuck in loading sequence forever when trying to edit a page [closed]