Wavlink Docking Station Not Detecting Monitors

Do you mean this?

WavLink – UG39PD1 USB-C Triple display Universal Docking Station with Power Delivery Model: WL-UG39PD

"Both DVI and HDMI Via DL Max. 2048 x 1152@60Hz

Extra HDMI via Vesa Alt. Mode Max. 4K@30Hz"

In other words, two outputs driven using the second-class DisplayLink workaround; one driven using hardware-supported video.

Acer – B246HL Widescreen LCD Monitor

You say that these monitors only have DisplayPort inputs – no HDMI ones. But according to Acer, these monitors, which have a resolution of 1920x1080 pixels and a refresh rate of 60 Hz, don't have DisplayPort inputs. They have DVI and VGA ones.

If you were using DisplayPort to HDMI adapter cables to connect HDMI ports on your dock to DisplayPort inputs on monitors, that would likely be a cause of problems. Those adapter cables are normally unidirectional the other way. My impression is that it's easier to go back and forth between HDMI and single-link DVI, so if what you are using is a pair of HDMI to DVI cables, I'm not sure why you're seeing no signal.

You may want to check that the monitors are set to use their HDMI inputs rather than their VGA ones.

Contact Wavlink for support.

Contact a third-party vendor - Apple Support