The original post: /r/ubuntu by /u/Trick-Craft1714 on 2025-02-22 11:02:05.

Hi, I have recently installed Ubuntu 24.04.2 LTS on my desktop PC. I am connected to the internet using a usb Wifi (Archer T3U from TP link) in 5Ghz.

The connection is fine for low intensity usages (playing online, web browsing, youtube etc) but if I try to download a large file at my router’s top rate, around 250 mb/s, the wifi crashes, usually in like 30s, and I need to unplug and plug again my dongle to make it work again. If I limit my download speed to 100 mb/s it seems to stay stable somewhat, but it can still crash, just less often.

My drivers seem up to date, the update manager does not propose a proprietary driver to install.

I have already tried the common fix I have found online where you change the “3” to a “2” in the wifi powersave config file situated here : /etc/NetworkManager/conf.d, but it doesnt seem to improve my situation.

Is anyone here having a similar problem ? It seems to be a pretty common occurrence for many people online.

Here’s an extraction of the “dmesg” thingy from the terminal from one cycle of unplugging the dongle, plugging it back in and wifi crashing while I download a game on steam :

[ 2523.448452] usb 1-3: USB disconnect, device number 10
[ 2525.317885] usb 1-3: new high-speed USB device number 11 using xhci_hcd
[ 2525.444500] usb 1-3: New USB device found, idVendor=2357, idProduct=012d, bcdDevice= 2.10
[ 2525.444505] usb 1-3: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[ 2525.444506] usb 1-3: Product: 802.11ac NIC
[ 2525.444508] usb 1-3: Manufacturer: Realtek
[ 2525.444509] usb 1-3: SerialNumber: 123456
[ 2525.447936] rtw_8822bu 1-3:1.0: Firmware version 27.2.0, H2C version 13
[ 2525.664605] rtw_8822bu 1-3:1.0 wlxe848b88fc8d2: renamed from wlan0
[ 2531.240767] wlxe848b88fc8d2: authenticate with c8:99:b2:2e:d7:e5 (local address=e8:48:b8:8f:c8:d2)
[ 2531.307125] wlxe848b88fc8d2: send auth to c8:99:b2:2e:d7:e5 (try 1/3)
[ 2531.307922] wlxe848b88fc8d2: authenticated
[ 2531.308706] wlxe848b88fc8d2: associate with c8:99:b2:2e:d7:e5 (try 1/3)
[ 2531.313317] wlxe848b88fc8d2: RX AssocResp from c8:99:b2:2e:d7:e5 (capab=0x1511 status=0 aid=39)
[ 2531.317700] wlxe848b88fc8d2: associated
[ 2531.337330] wlxe848b88fc8d2: Limiting TX power to 22 (22 - 0) dBm as advertised by c8:99:b2:2e:d7:e5
[ 2559.310411] rtw_8822bu 1-3:1.0: failed to get tx report from firmware
[ 2564.646441] wlxe848b88fc8d2: authenticate with c8:99:b2:2e:d7:e5 (local address=e8:48:b8:8f:c8:d2)
[ 2564.713693] wlxe848b88fc8d2: send auth to c8:99:b2:2e:d7:e5 (try 1/3)
[ 2565.214350] rtw_8822bu 1-3:1.0: failed to get tx report from firmware
[ 2565.783397] wlxe848b88fc8d2: send auth to c8:99:b2:2e:d7:e5 (try 2/3)
[ 2566.286436] rtw_8822bu 1-3:1.0: failed to get tx report from firmware
[ 2566.808163] wlxe848b88fc8d2: send auth to c8:99:b2:2e:d7:e5 (try 3/3)
[ 2567.310343] rtw_8822bu 1-3:1.0: failed to get tx report from firmware
[ 2567.766348] wlxe848b88fc8d2: authentication with c8:99:b2:2e:d7:e5 timed out

Thanks a lot for your help and patience if you read all of this, I am very new at using Ubuntu and Linux in general, sorry for that …