Solarwinds SGC returning error - code: 400 with reason: Attachment is empty

[MBarrott]

I'm setting up the Solarwinds SGC but running into an error when testing the connection. 

Error: com.snc.process_flow.exception.ProcessAutomationException: Error creating Attachment raw_page_stream : Method failed: (/api/now/hub/temporaryattachment) with code: 400 with reason: Attachment is empty

I've read a few posts which mention it being a credential/access/permissions issue on the Solarwinds side but have not seen any specific details on what access needs to be enabled and where. 

Does anyone have any suggestions?

[LShetler]

We are having this exact same issue. When we check the outbound HTTP request, it states that it's actually a 404 error. Hoping someone can provide a solution.

[MBarrott]

Hi @LShetler - I have fixed this issue on my end now. See my accepted solution and hopefully it fixes issues for you. 

[MBarrott · Accepted solution]

Fixed issue. 

This was tied to two primary issues:

1. The port used for Solarwinds has changed in recent years. Port 17778 has been depreciated since 2023 versions of Solarwinds and now uses Port 17774. 

2. Issue was tied to credential permissions on the Solarwinds side. I can't confirm the exact permission that was needed but elevating the respective Solarwinds account to admin immediately circumvented the issue.