I had a little bit of this problem. Again I think its session problem.

After I login, it prompted and showed me
Quote:

When the page refreshes, it showed it didn't login. When tried to enter any administration site, it will deny and prompt to go to a login page.

Different pc may have different respond.

I Just don't understand the problem. Just how do I fix this session thingy?

I made a search and couldn't find what I wanted.

Using 2.0.18.1 btw.

Try this:
https://xoops.org/modules/newbb/viewtopic.php?post_id=288535#forumpost288535