Does anyone have experience with the sftp module? I've got my passwordGuid, Hostkey, username, etc but keep getting the error:

"error.SuiteScriptError","name":"FTP_CANNOT_ESTABLISH_CONNECTION","message":"Could not establish connection to Auth fail.","stack"

despite using the same creds I successfully use with Cyberduck to sftp into the server. I've tried 2 different pwd GUID suitescripts with the same results. (including this great one-> https://ursuscode.com/netsuite-tips/suitescript-2-0-sftp-tool/)