Thanks for replying!
Hardware acceleration was disabled the whole time. Forgot to mention it.
Also, if I understand you correctly, the openVPN client I'm talking about is the one within the router FW itself. That means I can perfectly fine see which protocol has been used from all devices even...
I have RT-AC5300 with the latest Merlin FW 386.9. I have noticed that some devices uses too much data as showed in the screenshots i've uploaded. The reason it shows only upload and nothing under download is that when i enable my openVPN client, the traffic analyzer combines both upload and...