Hi > -----Original Message----- > From: Stefan K <shadow_7@xxxxxxx> > Sent: Monday, March 21, 2022 7:52 PM > To: linux-wireless@xxxxxxxxxxxxxxx > Subject: rtw89: unstable connection > > Hello, > > I got an new Laptop (Lenovo T14 Gen2 AMD) and it has RTL8852AE chip, it can connect to WiFi, but its very > slow and unstable: > --- 8.8.8.8 ping statistics --- > 100 packets transmitted, 60 received, 60% packet loss, time 99514ms > rtt min/avg/max/mdev = 578.297/4515.244/10612.149/2763.037 ms, pipe 11 > > I'm running on Debian bullseye with backport Kernel Linux 5.16.0-0.bpo.3-amd64 > > I reported this on github (https://github.com/lwfinger/rtw89/issues/133) and I added the following (as > recommended): > cat /etc/modprobe.d/50-rtw89.conf > options rtw89_pci disable_aspm_l1=y disable_aspm_l1ss=y > In additional to above options, please also add below option: options rtw89_core disable_ps_mode=y Then, do cold reboot, or shutdown/power-on would be good. > [ 1532.499712] rtw89_pci 0000:03:00.0: [FWBB][WARN][CMW] No specific sta connect > [ 1532.600273] rtw89_pci 0000:03:00.0: [FWBB][WARN][CMW] No specific sta connect > [ 1532.700650] rtw89_pci 0000:03:00.0: [FWBB][WARN][CMW] No specific sta connect This log shows that you use old firmware, please copy the latest firmware to /lib/firmware/rtw89/. After applying the firmware, kernel log will show rtw89_8852ae 0000:03:00.0: Firmware version 0.13.36.0, cmd version 0, type 1 rtw89_8852ae 0000:03:00.0: Firmware version 0.13.36.0, cmd version 0, type 3 -- Ping-Ke