Same Problem?
I really hoped I was having this same problem, but putting both or either of these settings in my directadmin.conf file doesn't help. I checked my disk space and I have 14GB left.
Service/Phone - T-Mobile/Vibrant
Browser - Firefox
Connection - Wireless Tether
Software Versions - Everything is pretty updated (I don't know how to check DirectAdmin's version number, especially without being able to log in easily).
Symptoms - After logging in, IF it accepts my credentials (I don't get login errors - it just returns me to the login page, often), I click a link on the page and it asks me to log in again. Whether it takes my login credentials and loads a page seems random.
Attempted Fixes - I've added check_referer=0 to the .conf file, I replaced it with disable_ip_check=1, I put both in and I removed both after nothing made any difference.
Edit: I am able to connect via SSH and edited /usr/local/directadmin/conf/directadmin.conf with VI through that connection.
Do I need to restart DirectAdmin after making these changes? Feel free to suggest anything I didn't specifically mention that might seem obvious =) I'd really like to be able to access DirectAdmin again.