Experimented a bit with this.
I get the same problem on Joomla 1.0.12 _without_ CB installed.
Looks like this is rather a Joomla bug.

Feel free to (dis)agree with my findings.

ok, looks like an incarnation of
developer.joomla.org/sf/go/artf6701?nav=1
although that was supposedly fixed in Joomla 1.0.12.
See also related forum posts and base bug for the above.

Busy working through the suggestions there, but have not yet cracked it.

I'm having the EXACT same problem! Please someone help fix this! I pitched my company the value of using open source, as a means to do our website first, then donate later to pay for the functionality. So far, I'm not winning on this front since I'm having major problems with the login (and a few other ext)...

Hello all!
I also have the same problem with logging in:
- Page just refreshes but from admin (which logs in just fine) side, it appears more and more users are logged in.
- If the "remember me" box is ticked, there are no problems.
It seems to be the same from all browsers, from a mates computer, and with session cookies enabled...
Would love to get this problem sorted out... any ideas?

Apart from that CB is THE most awesome component of Joomla!

Thanks!
Skilputt

I'm having the same exact issue as others. I recently installed CB on my site, www.streetdated.com , and when anyone tries to login on the site using IE7 or Firefox, it still shows the login form, even though they are logged in on the backend. Any ideas what the cause is yet? Joomla's forums are such a mess, I can't find any information there. It's a bit of an annoying bug I can live with if I know its a bug being worked on either in Joomla or CB. If there is no sign of this being corrected anytime soon, I might have to drop CB, as I plan to launch my site here soon. Confusing bugs like that will just annoy users of any website that has that bug.

Same here to.

I have 6 sites running a mix with and without CB and there are ~300 users on each site where 70% of them access it from locked down campus computers where I have a feeling the cookie gets locked so they get the login loop and it shows them logged in the back but they arent in the front.

I have found tons of threads about this on the Joomla.org forums and no answer. We really need to raise a flag on this and get this fixed.

1. We can't control how and where people access the sites from so the sites need to to be self-sufficient.

Link to my post with links to the other pages:
forum.joomla.org/index.php/topic,169418.0.html