Download
Auto Cookies MOD
then, unzip it to your computer,
then upload the included install folder, to your phpbb folder on the server.,
then , in your browser, go to:
yourdomain.com/yourphpbbb/install/cookie.php
then click the button to accept the settings it finds.
then delete the install folder.
Then you and all your members
MUST do the cookie dance:
step 1. log out
step 2. clear your browser cookie
step 3. clear your browser cache/temporary internet files
step 4. close your browser
step 5. go back and test
step 6. hold one foot in the air and spin around three time
singing "Do the Cookie Dance, yeah, yeah, yeah."
done.