It appears that your server is having problems. I can authenticate fine but when it goes to load the development console it seems to be hanging. I also can not connect on my applications despite making 0 changes to them.
What is your application ID ?
Sorry for the late reply. I stopped having the issue, but it has appeared again today. My App ID is 38698B33-E743-E536-FF6F-610C2D8C0C00
Just as additional information. When this error happens, I am unable to access the data from iOS, Android, and Javascript. As well as being unable to login to the developer platform.
At the current time, I can not reproduce this issue.