I have several Salesforce sandboxes. I use one for development and one for QA. I am able to create a workspace and login to the QA sandbox but I get an authentication failure when I try to login to the development sandbox through Cloud9 although I can login to it outside Cloud9 with no problem.
I have a similar problem. Since this morning, when opening my workspace, I get
We could not authorize your Salesforce account. You will be redirected to your login page to resolve this issue.
connect ECONNREFUSED 127.0.0.1:80
How can I reconnect to SF on an existing workspace?
Did you get any luck resolving your issue?
Use port 8080. Unfortunately, the only enabled ports on Cloud9 are 8080, 8081, and 8082, so try those ports.