With my newly acquired rt-ax86u with firmware 3.0.0.4.386_45934 when I run an ookla speedtest.net or ookla windows speedtest program the tests freeze on the upload. I have centurylink gigabit fiber. Upload and download speeds are around 500Mpbs when they should be in excess of 900Mbps. I have windows 10 64bit and am connected via eithernet. Adaptive QoS and Traffic Analyser are disabled. Any suggestions for remedying this and/or getting the proper speeds? Thks.