Password reset bug? – “Sorry, that key does not appear to be valid”

Recently my WordPress website’s reset password function has started to not work.

When a user clicks the link that the ‘forgot your password?’ link sends out, it displays the error “Sorry, that key does not appear to be valid.”.

I searched through some internet forums and this seems like a well-known issue, yet there is no consensus on a solution.

I tried disabling most of the plugins that I installed recently and custom functions I put in, but the problem just persists. Does anyone know what could be the problem? I hope it is not a wordpress bug that came with an automatic update.

Thank you

I had this problem and it took me all week to figure it out. I know OP has probably solved it by now, but for the others like me who surfed here looking for answers:

Open the wp-config.php file and use this website ( https://api.wordpress.org/secret-key/1.1/salt/ ) to replace the lines of code that start with: “define (‘AUTH_KEY’, ‘blablabla’);”

Please backup the file and/or comment out the old lines, just in case! Hope it works for you also!