I have a wordpress multisite set up, and in my sub-site (called "team" site) I have buddypress. There is an activity stream, but I cannot post updates to the activity because there is a 403 error. When I click "submit" on a post and inspect the error, this is what I see on the network tab:

Request URL: https://<<masked>>.sg/team/wp-admin/admin-ajax.php
Request Method: POST
Status Code: 403
Remote Address: <<masked by me>>.31.79.150:443
Referrer Policy: no-referrer-when-downgrade

And when I check the actual response tab, this is the message:

The link you followed has expired. https://<<masked>>.sg/team/ Please try again.

What could be causing this problem? I cannot replicate this error on my local host.


the issue was to do with cookies. In a multi-site setup, the cookies that are set upon user login depends on which subsite the user logged in from; not all cookies give equal authority to submit forms. so the solution is either you (a) change your cookie domain to one common one in wp_config.php - in which case a user can log in anywhere and the cookies will be fine, or (b) have a redirect so that there is only one site that users can log in from. Because of my unique setup, I opted for (b)

| improve this answer | |

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.