Dock not outputting 2560 x 1080

USB Docking Stations UD-ULTC4K
3
  1. https://www.amazon.com/dp/B01N7UF8T4/?coliid=I1DWR3PFUVNYTW&colid=1QSK34REZUTLF&psc=0&ref_=lv_ov_lig_dp_it It is an LG 34UM59-P.

2.As previously stated I have tried it through both of the DP and HDMI ports. Straight HDMI cable and through two different DP to HDMI cables. I tried an extron active DP adapter and it would not pass the 2560 x 1080 edid.

  1. It doesnt work with both an active or passive.