Recently I purchased a Dell precision 7540 i9 with an upgraded NVIDIA graphics card and a Dell WD19 DC docking station that comes with the 240W power supply. As stated the docking station does say it can support three monitors displaying 4k resoulution. However, after updating the firmware, video card drivers, making the appropriate changes in bios and updates one of the three monitor displays I have indicates that there is no signal coming from the docking station. More times than most the HDMI port is the one that doesn't come up after numerous reboots and the connection doesn't seem to go through every time as it should. I swapped cables on other machines and monitors they work.... Just wondering if anyone else is having similar issues with this specific docking station?