Ninja This is the 2nd time you guys have complained about this redirect. There is no custom URL being used. I can't repeat this condition. I can access the backend from several systems, including some international. What is the IP network you are connecting from? Post this detail and I'll create an exception.
Caching is not going to fix this problem. I keep repeating that this is not a performance issue with the server, or Joomla directly. The performance issues began with JS 4.7.9 and they go away when I roll back to 4.7.8.
-k