Beelink SER No Display Port Output

New PC received Wednesday, Processor AMD Ryzen 7 6800U ,running W11 Pro I have two monitors one with HDMI and DVI, another with DVI. I can only get an output from the HDMI connection, the Display Port seems dead, using a brand new active DP to DPI cable?

Am I missing a step somewhere or is my PC bad?

TIA

Peter