Targus docking station, attempting to connect 2 monitors

I am using P2719H Dell monitor with MacBook Pro M1 and Targus DOCK190APZ-82 docking station. The MacBook detects the docking station, however it doesn't detect the Monitor and the Monitor does not get any input. What could be the issue?

To support at most TWO displays on one port out of a Macintosh Computer, the PORT, the cable, and the first device, (Dock or Display) must all be genuine ThunderBolt.

USB-C has only half the data pathways, and Macs do not support two displays on one USB-C port.

Targus Dock:

The Targus DOCK190 is a native USB Type-C 3.1 Gen 1 (USB SuperSpeed) Universal Docking Station 

Dell display:

Up to 1920 x 1080 through VGA, DisplayPort, and HDMI

Hi IsaRosa,

We understand you need help with your docking station and we can assist you.

Your docking station won't be able to accept 2 monitors if it only plugs into one port on your Mac.

Your Mac doesn't support using more than one display per port. You will need to plug one monitor into the docking station and the other monitor into another available port.

Read more about connecting monitors here:

Connect a display to your Mac

Thanks for using the Apple Support Communities.

There are more than a dozen devices that meet the description "Targus docking station"

which model is yours, Exactly?

There are three models of 2017 MacBook Pro in three different groups, with two different screen sizes.

which model is yours, Exactly?

There are at least dozens of different displays, which could be connected with several different connection protocols.

what are you using, Exactly?