I've got an FTP connection that is throwing the following error when I test it:
We have another credential set that works fine. Everything is the same except the username and key file. The team that owns the FTP server says it's a Celigo issue. I can connect perfectly fine from FileZilla, it's only Celigo that is having issues.
Has anyone seen this before? Any ideas?
BTW, Celigo ticket has been submitted #279826
This query is resolved.
Issue: Problem is not due to authentication or key format. Further investigation suggested the user might lack permissions to the root folder on the FTP server.
Resolution: The connection succeeded after updating the connection to enable to "directory is root", which was the cause of the failure.
Hi @layakodam68 ,
Correct, I'm unblocked and have just deployed the project tonight, so that's very good. Daryl in support saved the day! 
While the solution to check User directory is root" was effective, I don't understand why it's necessary. It appears that when FileZila connects, it gets a directory listing from /root/ and then presumably changes to the first directory returned (i.e., that the user has permission to access).
Status: Connecting to cartman.rules.blob.core.windows.net...
Status: Using username "cartman.rules.southpark".
Status: Connected to blob.foobazz.store.core.windows.net
Status: Retrieving directory listing...
Status: Directory listing of "/southpark" successful
Anyway, just kind of interesting. At a minimum I hope that Celigo can improve the error message for a scenario like this, might save some time in the future if someone else encounters this.
Thanks @steveklett for your suggestion. We will definitely look into improving our error messages.