Took a bit of a look at the two httpstorm patch contents, contrary to the remarks in the CC PR you linked above, they are not meant to override TX power; pretty much fall through as per the original code. They do attempt to add:
so the target device is really the rango and venom.
Hi all, I can confirm the same experience with WRT1900ACS. I bought the device in summer of 2019 and after a few day with stock FW changed it to DD-WRT. Quite a few months I observed the poor 2.4GHz connection speeds and link drops. Reverting to stock resolved link speed immediately. Then switched to OpenWRT. Initially I thought it was better, but after a few weeks I realized it was the same intermittent 2.4GHz speed. My workaround was I select 20MHz bandwidth, bg-only support. It is now quite stable, though I'm still concerned about one or two link drops for the last month.
Once I experienced for 5 GHz:
Resolved it by router restart and thought it might power save mode.
Hope there will be resolution to that WiFi instability as for the same price I could get 3 ASUS N18U devices.
To add to the discussion. I am having an issue with the latest OpenWrt version (19.07.2) and a WRT1900AC (v1). I am going to try OpenWrt version 18.06.1 and will update this thread if that helps.
Edit: Version 18.06.1 did not work for me, it gave me the same issue as the latest OpenWrt version.
Same issue here. Is your SSID the same as your 2ghz network? Mine is and I'm running into trouble with that setup.
See [Fixed] WIFI connectivity issues when upgrading from version 19 to 22 for a possible fix to at least some of your problems.