Hello, I'm using OpenWRT 22.03.02 on two Netgear WAC104s (neutered R6220). The issue I'm trying to understand is that my wireless upload speeds seem to be capped around 200Mbps on my 5Ghz/AC SSID.
This limit is seen over iperf3 and speedtest(dot)net. Download speeds are not affected and I regularly achieve >350Mbps down. I've also done the same tests over wired devices just to confirm it isn't a hardware bottleneck on the main WAC operating as the router, and I get 500Mbps symmetrical on speediest (what I pay for), and full gigabit over iperf3.
Things I've tried to remedy the situation are: testing different transmit powers, setting the least congested channel, setting the cipher to AES only.
Are there any different drivers I could try? Or am I possibly ignoring some settings in the wireless menu? any suggestions would be appreciated
Yes, it's running on master snapshot. It should be the same for 23.02. Sorry I forgot to mention this.
Why old ? Is it deprecated ? I can't find this info. I have simply setup wifis using Luci.
I own two and manage a third one: I'm using mostly 5GHz and can achieve 40 MB/s when transfering file from a desktop to a laptop. I'm poorly using 2.4GHz (and old device from time to time), but it works as expected (12 MB/s). So far I'm satisfied by the performances that are according to hardware. I have used 19.07, 22.03, 23.02 and a lot of various snapshots on all these three models.
I have also read several issues reports but I can't figure out why (bad config, bad models ?).
Recently there was an issue for snapshot (Probable wifi regression in mt7621 snapshot) but that was a simple bug correctly the day after. I can't call this a driver issue, just a setback.
I have read this several times myself. Unfortunately I have never had such issue (lol ?). All I can say is that the three models I own/manage are working fine with 2.4GHz. The one managed runs on 22.03 and mine are on latest snapshot.
if you were using a customized version of OpenWRT with newer kernel than 5.15+, then following pr features a fix: https://github.com/openwrt/openwrt/pull/11220. There are different proposed fixes for "wifi lost issues" on older kernels also, but not sure if they would fix your problem. It's a long discussion over there.