hey, i have a problem very similar to this. Can't acces site's frontend or backend.
my site is geeks.eurogsm.ro.
I can acces the files trough FTP and i can also acces the database.
I tried to update my dns trough myPHP admin page but it seems that the problem is not solved. i am using WordPress 3.8.1 and the theme Jarida.
I have also talked so the manager of the servers and he said thet the problem is not there...
it's been allready a day since my site is down and i have no ideea left.
Any ideea that will not screw the entire site like modifing the folders?