# DownloadDignostics failing over the D-Link router

**URL:** <https://forum.genieacs.com/t/downloaddignostics-failing-over-the-d-link-router/7085>\
**Category:** Uncategorized\
**Created:** [August 6, 2025, 5:51am UTC](https://forum.genieacs.com/t/downloaddignostics-failing-over-the-d-link-router/7085 "2025-08-06T05:51:21Z")\
**Posts on this page:** 2\
**Page:** 1

<div class="post-metadata">

**Author:** ![Shivi1771](https://yyz1.discourse-cdn.com/flex035/user_avatar/forum.genieacs.com/shivi1771/32/2440_2.png) [@Shivi1771](https://forum.genieacs.com/u/Shivi1771)\
**Post date:** [August 6, 2025, 5:51am UTC](https://forum.genieacs.com/t/downloaddignostics-failing-over-the-d-link-router/7085/1 "2025-08-06T05:51:21Z")

</div>

I am trying to test the download speed of my D-link router but when i am doing the Download Diagnostics test, i am getting this error “Error\_TransferFailed”.  
I use this url as my download url: [https://www.sample-videos.com/zip/100mb.zip](https://www.sample-videos.com/zip/100mb.zip)

What do you think the error can be?

I am using these params:

| InternetGatewayDevice.DownloadDiagnostics | |
| --- | --- |
| InternetGatewayDevice.DownloadDiagnostics.BOMTime | |
| InternetGatewayDevice.DownloadDiagnostics.DSCP | 0 |
| InternetGatewayDevice.DownloadDiagnostics.DiagnosticsState | Requested |
| InternetGatewayDevice.DownloadDiagnostics.DownloadURL | [https://www.sample-videos.com/zip/100mb.zip](https://www.sample-videos.com/zip/100mb.zip "https://www.sample-videos.com/zip/100mb.zip") |
| InternetGatewayDevice.DownloadDiagnostics.EOMTime | |
| InternetGatewayDevice.DownloadDiagnostics.EthernetPriority | 0 |
| InternetGatewayDevice.DownloadDiagnostics.Interface | |
| InternetGatewayDevice.DownloadDiagnostics.ROMTime | 8/5/2025, 8:58:23 PM |
| InternetGatewayDevice.DownloadDiagnostics.TCPOpenRequestTime | 8/5/2025, 8:58:23 PM |
| InternetGatewayDevice.DownloadDiagnostics.TCPOpenResponseTime | 8/5/2025, 8:58:23 PM |
| InternetGatewayDevice.DownloadDiagnostics.TestBytesReceived | 0 |
| InternetGatewayDevice.DownloadDiagnostics.TotalBytesReceived | 0 |

Kindly help if someone can

---

<div class="post-metadata">

**Author:** ![akcoder](https://yyz1.discourse-cdn.com/flex035/user_avatar/forum.genieacs.com/akcoder/32/11_2.png) [@akcoder](https://forum.genieacs.com/u/akcoder)\
**Post date:** [August 6, 2025, 5:11pm UTC](https://forum.genieacs.com/t/downloaddignostics-failing-over-the-d-link-router/7085/2 "2025-08-06T17:11:46Z")

</div>

Look at the logs on your CPE. If nothing is exposed in the CPE logs, then you will need to pop the unit open and connect a [USB → TTL](https://www.amazon.com/dp/B0BJKCSZZW) cable to the onboard 4 pin serial header. Set your terminal software for 115200 8n1. You can almost certainly find the pinout on the internet. You only need ground, rx and tx. You do not need vcc.

Once you have that connected and can successfully view the serial console, initiate a download diagnostics test again.