Cannot login with every user but the first

Hi guys,
I've just installed a new revo on a clean website 2.2.6-pl, I can login with the first administrator user, but I am not able to login with any other user I try to create. I've tried with a new user, duplicating the first, etc.

What happens is that, after filling the username and password in the login page, I am redirected to the login page, without any error (if I mispell the password, an error appears).

I tried to follow the advices here [ http://rtfm.modx.com/display/revolution20/Troubleshooting+Installation#TroubleshootingInstallation-Theloginpagekeepsredirectingmebacktotheloginscreenwithnoerror ], that seem to be related to my situation, but I had no luck.

Any help for me?

Have you ensured that all the new users you've added belong to a user group with an access policy that permits access to the "mgr" context?

Ah! That's it!
However, I had to put this user in the Administrator group with Super User role, otherwise he cannot enter. Shouldn't it be a default "simpler" role that allow to login in the manager?

I usually set up a user role/group which has less than Super User permissions but enough to log into the manager and do everything they need to do. Security permissions, etc can be a bit awkward to use and set up I've found - so I don't use them all that often!

I found BobRay's site had a decent tutorial which describes the basics pretty well and should help you get what you need sorted: (I think this is the correct link still)

http://bobsguides.com/revo-security-tutorials.html

There are various ways to do what you want, but I usually recommend putting other users in a separate user group (not Administrator). It makes the system easier to understand and gives you more flexibility with Form Customization rules.

You might find this video helpful: http://modxpo.eu/schedule/sessions/modx-revolution-security-permissions-system