i used the docking station previously with a Dell XPS 13 - and it worked beautifully aside from having to occasionally reboot the docking station to get the 4k port working again.
now with my macbook pro 15 - it works great until i lock the machine and then when i wake the macbook back up the 4k port ceases to work - i have to reboot the docking station everytime which is a pain in the butt.
Thank you for contacting Plugable support! Sorry to hear about this issue. I’d be more than happy to assist you.
We have a troubleshooting tool that helps us find out what is going on in situations like this. Please plug the dock into your computer, then go to this page and follow the instructions there: