Hi everyone,
I have a DNN 4.5 website (www.reason4tutorial.com) that has been running great for over 2 years with over 4 thousand subscribers, until this morning!
I have not made any changes to the website or installed any new modules, but i am not able to login as host or admin, but i am still able to login as a user and new users can still register and use their account.
I have no idea what may have happened but i did notice that the webconfig file has a 'last modified' date of 25/08/10 and this was not modified by me.
Any ideas as to how i can fix this problem?
Thankyou for taking the time to read this post,
Cheers, Matt

Thank you for the quick responce.
I am currently re-building the site on a new server with DNN 5.4 but i am keeping the old website going until i have built the new site and then i can switch over.
The problem is that because i can not login as host i am unable to administer the website until the time comes to swap over.
Do you think there is anyway to regain access as host?
Cheers,
Matt