Integration studio login error. Can't figure this out.

Integration studio login error. Can't figure this out.

  

I can't open an environment in tthe Integration Studio. All my attempts give the error: "Error connection to server. Value cannot be null. Parameter name source"

There doesn't seem to be anything for me to change. I can only enter the environment, username, and password. I've used the integration studio before, so I know it should work. 

Sorry I don't have more information to offer, but that's the problem! 


Thanks

JS

Can you connect to the environment in Service Studio?

Is it a Personal Environment that went to sleep?

What Eduardo said and, if not, can you test the address in some other way (browser, ping, etc)?