Dispatches from a Small Business
Not really sure what is going on, but you may get intermittent server errors. These may clear with a page refresh but something is definitely broken.
Where do you host your servers?
I am experiencing the same issues at godaddy. A very good friend is having similar hiccups on Prismnet hosted servers in Austin Texas.
The Texas server problems were minimized by blocking SSH requests out of China. It seems an army of "malbots" is hitting servers all over the world with a huge volume of SSH and FTP requests.
Of course, Godaddy just blames the wordpress software. Go figger.