phpBB.de

I already did some changes to the cookie configurations.. But it didn't help .

And I tried to solve this problem on
- phpbb.nl
- phpbb.com
- phpbbhacks.com
- phpbb2.de
- phpbbstyles.com

But never found a solution

Mein Deutsch ist nicht so gut, so I have the problem written in English:

I have a problem on my forum. After a while, let's say a day, when a member returns to my forum and want to login, they say that the password isn't correct anymore and they have to use the passmailer for a new password. They ...