OpenWrt router and stock AP

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Yeah problems with -ct version seem very common like here:

Let's talk ath10k CT firmware

Devices I use: Netgear R7800 (QCA9984) UniFi AP AC Lite, TP-Link Archer C7 v4 (QCA988X) I consistently notice stability issues and reduced performance with CT driver + firmware on all the devices above. For example, the real throughput as measured by an iperf3 TCP test on my R7800 is 3x worse than mainline (sometimes called "old"). The CT driver doesn't seem to make a difference, with or without it, the perf is the same. It's all about the firmware. I realize this may be specific to the env…

But it is always device specific.