I have been using my USBC Triple for a couple years now without any problems in multi-monitor setup. Last prime day, I bought the Dell U3818DW.
The monitor cuts out every 11-15 minutes with a signal loss/searching for signal. Takes about 5 seconds to sync back up. I do not see the green nor blue light on the plugable change and stay solid.
I have upgraded the Dell drives to the latest version and have also updated the Plugable to its latest.
I do not have the issue when I downgrade to a HDMI1.4 cable nor do I experience it with a USB-C cable - both plugged into the 4k port. I have also swapped out the HDMI cable with same intermittent signal loss.
Comp: Dell XPS 13 9380
OS: Windows 10 Pro
Dell U3818DW Firmware: M3B105
Os Drivers: 20 Jun 2017
Any assistance is greatly appreciated.