Unauthorized request. Invalid or missing nonce in August 2025

Hello,
This morning, I tried to connect to the backend of multiple sites and I got this error message: Unauthorized request. Invalid or missing nonce, be sure you are using the current version of the MainWP Dashboard and Extensions.
I saw the post from 2022: Same error but the solution didn’t work for me and I don’t see myself adding this on +220 URLs!
Any solutions?
MainWP dashboard and MainWP Child are up to date.
Thanks
Fred

Hey @wpexpert

Did you perhaps have your MainWP Dashboard page loaded in the browser for a long time?
The nonces can get stale.

Can you try signing out of your MainWP Dashboard site and signing out back, and then check if you are seeing the same issue?

Hey @bojan,

Did the trick! I never think of that, thanks!

Fred

1 Like