title: Attachment upload failed with the error: The underlying connection was closed: An unexpected error occurred on a receive | VSTS & TFS description: This message might appear in a dialog box when you save a work item that has attachments ms.prod: visual-studio-tfs-dev14 ms.technology: vs-devops-wit ms.assetid: 5d0e19c4-69fc-469e-93a0-f6d1ebd96777 ms.author: kaelli ms.manager: douge

ms.date: 02/22/2017

Attachment upload failed with the error: The underlying connection was closed: An unexpected error occurred on a receive

VSTS | TFS 2018 | TFS 2017 | TFS 2015

This message might appear in a dialog box when you save a work item that has attachments. The problem might be intermittent and difficult to reproduce.

Possible Causes

The client computer might not be configured to automatically detect the link speed of its network adapter. This setting might decrease performance between the client computer and Visual Studio Team Foundation Server.

Solutions

On the client computer, enable automatic detection of the link speed for the network adapter. For more information, see Configure a network adapter to automatically adjust speed.