I have this problem and have spent four days trying to correct it. I have three blogs and it only effects one but it is the biggest blog. First I contacted Hostgator.com. W tried a lot of things including the Ping times, etc. It does not do it when I open the blog on unerasedhistory.com but when I open unerasedhisory.com/wp-admin I try to load the posts and it goes into a spin that lasts 3.5 minutes and then goes into “Not found for 504” and the screen says I arrived at a 404 page.
They could not correct the problem so I contacted my ISP and they could not fix it so they sent me to McAfee to see if there was a problem with a firewall. They then sent me back to Hostgator. The problem what ever it is is still going on. We even changed the IP address. This problem does not happen except with unerased history.com
