Dell D6000 - Slow ethernet
 

We have both the Dell E5470 and 5480 connected to the Dell D6000 docking station. The E5470 uses USB 3.0 and 5480 uses USB C. When off the dock and with an Ethernet cable plugged directly in to the laptops we get 50Mpbs download and 47Mpbs up. When connected through the dock we get 3Mbps down and 47Mpbs UP.

I have applied all drivers updates, updated the BIOS applied Windows updates but the issue is the same. Anyone have any ideas?

I also have found a way to reproduce the above issue with my company's Dell 7280 laptops connected via USB-C.

If I connected the 7280+D6000 to a older 19" monitor that only has DVI inputs (therefore I need to use a DP to DVI adapter) the NIC slowness persist.
If I then connect the same 7280+D6000 combo to a newer 34" screen via DP to DP, the slowness goes away.

Hello,
This is peculiar and not expected. Especially the second report.
Would you please be able to use the third link in my signature to gather the machine details and other logs?
Also, please specify what network equipment (brand, model and network speed) the Dell D6000 is connected to.
I can then create a bug report for investigation. To have better chances of reproducing this, we will need to select either close or identical equipment. An internal reproduction is likely to be necessary for debugging.

Final question, how do you measure the speed? Is that using a local FTP server, moving files through a Samba/Windows network shared driver, external website test?.

Kind regards,
Alban

Hi Alban, I'm using speedtest.net to test internet speeds.
Your 3rd link details steps through troubleshooting about driver installation issues?
Do you want me to run through all the steps or just gather my test system information?

Yep, just the use the Customer Support Tool to package it all, please.

We have an internal reproduction now of something similar. We have had a report with all the logs. We can't be sure we are looking at the same issue or similar symptoms of a different illness so I'd still like your logs to create a new bug.

8.3 M0 release candidate has already left the station and, as we don't have logs or a fix, it should behave the same way in that imminent release (= don't install and expect it fixed).
However, as we progress on the bug where we already have all details to progress, I should be able to share a development build to check if that addresses your report as well or if more work will be needed.

Kind regards,
Alban

Hi Alban,

Please find attached the standard "Gather Support Information" zip file below.
The monitor i was using is a Dell 1907FPt

Perfect, thank you.
We will be in touch!

My ref = 25392+25998

Just wanted to chime in that I have the same issue on some machines I've been working on. All monitors are DVI hooked up to a D6000 Dell dock through a DVI to DP adapter.

First setup
Monitor: 19" Dell 1905FP
Network: 500-800 kbps

Second setup
Monitor: 17" Dell 1708FP
Network: 500-800 kbps

Third setup
Monitor: 19" Dell P190ST
Network: 8-10 Mbps
*Better on this newer monitor but still no the full 80Mbps.

Fourth setup
Monitor: 20" Dell E2011Ht Widescreen
Network: 80Mbps

This was tested on the same laptop with the same dock. Only things plugged into the dock was the ethernet, laptop through USB-C, and a single monitor. With each setup I could disconnect the monitor from the dock and it would be back up to full speed. The widescreen monitor(fourth test) did not have any issues. Thanks and please update if a solution is found.

Further testing of this problem leads me to believe that the issue is the resolution that is causing the issue.

1280x1024, which is the default and max setting of the 19" causes the problem. When connected to a 2415 - 24" and the resolution set to 1280x1024 the issue also occurs.

I can verify Vansen's test.

Just tried it on my 20" Dell E2011Ht widescreen. I get full 80 Mbps when it is set to 1600x900, but if I change it to 1280x1024 it drops to 8.5 Mbps.