Posted this in another thread, however saw that many people are having issues with blinking monitors and haven't seen a solution yet. Hardware, Software? Cables? The way it's set up? What mind boggles me that posts about this issue seem to 1-2 years old and no real answer. Anyway, here is my problem, purchased two new on the market U2417H last week with the intent to daisy chain per specs. Both blink about every 2 (Monitor 2) to 5 minutes (Monitor 3) intermittently, not very regular intervals, but often enough to be very annoying. The blink is about 1 second long on each monitor. Everything else seems fine. I extend not duplicate. When turning off MST, it only duplicates.

Specs:

Monitor 1 and computer/Tablet:
MS Surface Pro 3 with i5-4300 CPU @ 1.90ghz 2.50ghz, 4gb ram, 64 bit OS
MS states it supports DP1.2 and MST.
The Surface Pro 3 only has one mDP out port, I have no docking station, but the specs again say it's all good and should work just fine.
set up to extend primary monitor
all set to their recommended resolutions
Windows 10 Pro v1511

Monitors 2 + 3
Dell U2417H, connected with Dell supplied cables (that came in the box with the monitors):

Tablet to Monitor 2: mDP out to DP in (Monitor 2 set to MST on, all other settings factory default).
Monitor 2 to Monitor 3: DP out to mDP in (Monitor 3 set to default facotory settings, but also had it on MST on and same issues)

Hope someone could provide some insight.

Thank you.