Symptoms

The following error when deploying workflow from K2 smartforms Designer via farm name (http://FarmName/Designer): Error connecting to web service: http://FarmName/Designer/Workflow/FrameworkInterop.asmx xHttpWebRequest_WebException_RemoteServer] Arguments: NotFound Debugging resource strings are unavailable. Often the key and arguments provide sufficient information to diagnose the problem.

However, it appears that the workflow was deployed successfully.
 

Diagnoses

If they connected to the smartform Designer on one of the K2 server nodes, they did not see the behavior. The issue seems to be coming from the load balancer.

In Fiddler trace, I see the follow response:
HTTP/1.1 504 Fiddler - Receive Failure
Date: Mon, 26 Jan 2015 21:17:15 GMT
Content-Type: text/html charset=UTF-8
Connection: close
Cache-Control: no-cache, must-revalidate
Timestamp: 16:17:15.804

bFiddler] ReadResponse() failed: The server did not return a complete response for this request. Server returned 0 bytes
 

Resolution

This seems to be the issue with the load balancer. Suggest customer to increase the timeout on the load balancer.

Customer made the change on the load balancer and things for the most part would work with no errors.