Hi,

We are using K2 blackpearl for Sharepoint 0365 site. We have K2 workflow deployed to SharePoint list. When workflow executes, at particular step , it will invoke sub workflow.The Main workflow will wait till the item is update to specific condition.For this in Subworkflow, Dummy task is created that will check status for every 3 hrs.Once item in sharepoint list is updated subworkflow will end and go back to parent main workflow.

But here, we are frequently facing 'Remote server returned an error.(407) Proxy authentication required' error in subworkflow.When we retry it gets completed.Can anyone help us what cause this issue?

Regards,

Nidhya