[SOLVED] Lost Connection w/ TP-Link Archer T3U USB Dongle

[Cruslan]

Hello. I began using Gentoo over two months. I loved Gentoo due its flexible nature. I have TP-Link's Archer T3U USB Wi-Fi dongle that uses Realtek's RTL8822BU chip. I have frequent lost connection problem in this dongle. Wi-Fi connection loses by every one minute period by 2-3 seconds, it reconnects and loses again one minute. Its unnoticable while casual web usage but while in live conditions such as gaming or video conference it makes experince awful. I am not sure why it happens. I tried bunch of combinations Network Managers and Authentication Managers but none of them solves issue. Network Manager with wpa-supplicant has least issues in my fixing attempts. I mixed with Network Manager and iwd but i can't connect any Wi-Fi source or just dhcpcd with wpa-supplicant but connection problem still persists. I ran of my ideas about what can cause issue or how i can fix it. If you need any output, please tell me that. I am not sure which output should required.

I am using 6.7.3 kernel compiled with Genkernel. 1000 Hz, AMD P-state, Nuvoton 6683D Hardware Monitor for fans, RTL8822BU driver included in linux-firmware selected by hand
I use SystemD as init system and KDE Plasma as Desktop Environment
I have NetworkManager with wpa-supplicant

My computer is Desktop form, its specs are;
AMD Ryzen R5 5600,
16 GB 2x8 form 3600 MT/s RAM,
Sapphire Pulse AMD Radeon RX 6700 XT GPU,
ADATA's Legend 700 500 GB PCI-e SSD,
MSI B550-A Pro motherboard with 2023-November BIOS,

dmesg output about issue;

[spica]

show lsusb so people can see devid and vendorid

I run this driver https://github.com/RinCat/RTL88x2BU-Linux-Driver It works with current lts 6.6.13. Will it work with 6.7 – idk.

Before trying this driver, you must ensure your device's devid and vendorid are present here https://github.com/RinCat/RTL88x2BU-Linux-Driver/blob/master/os_dep/linux/usb_intf.c If not then the driver will not work.

[Cruslan]

Here it is, lsusb output;

[Cruslan]

I finally found a solution for my problem. I am still using linux-firmware included driver. Create a blank file with .conf suffix to /etc/modprobe.d and add this line in file, after that restart your device: