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AlexanderHoerl

macrumors newbie
Original poster
Aug 3, 2016
2
0
Germany
Hello,

I'm using a late 2013 MacBook Pro 15" and a LG 27UD68-W 4K display, both are connected through a Mini DP to DP cable. But when I connect both using the MacBooks Thunderbolt port the wifi drops instantly to around 0,3 - 20 mbit/s (I usually have 50 mbit/s) sometimes a cant even get a connection with my router.

As soon as I unplug the cable the connection works seamlessly. I also dont have problems when the display is connected via HDMI.

I've already tried a few cables (good isolated ones too) from amazon but most didn't work properly.

Do you have an idea how to solve this problem? Using the HDMI port isn't an option for me because the 4K monitor would be limited to 30hz.
 
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