SMB - Dell environment with slow Ethernet speed on WD15 and D6000

[tmasazo]

2.Dell
D6000
-Driver 8.3.1728.0 Display Link Corp - NETWORK Driver
-Windows Pro 1709 OSbuild 16299.461
-Latitude 5280
-Firmware 1.6.4
-Primary: DELL P2312H
-Secondary: DELL P2312H
-When connected to D6000 ethernet speeds are 500kbps-8mbps down
-When connected to the laptop Ethernet get full 80mbps down

-Ran speed test from Latitude and getting 8mbps down
-Noticed they had the Latitude 5280 connected with USB 3.0 instead of USB C
-Connected my Precision 3510 and ran speed test 8mbps down
-Moved from USB 3.0 to USB C on latitude 5280 and ran speed Test
-68.7mbps/41.48 mbps
-Ran the DisplayLink Support tool and "Gather support information"
-Set DisplaySupport to on and rebooted
-Installed DisplayLink USB Graphics Software for Windows 8.5 M1
-Ran "Gather Support information" then disabled debug gathering
-Ran Speed test once more on Latitude 5280 connected with USB C and getting full Speeds