Hello, I ran version 0.9.12.2, now I using 0.13.36.0 And it works fine and looks stable so far. But from time to time I got the following messages (don't know what it mean): [ 412.036347] rtw89_8852ae 0000:03:00.0: mac c2h class 1 func 2 not support [ 412.036353] rtw89_8852ae 0000:03:00.0: mac c2h class 1 func 2 not support [ 442.051581] rtw89_8852ae 0000:03:00.0: mac c2h class 1 func 2 not support [ 442.051591] rtw89_8852ae 0000:03:00.0: mac c2h class 1 func 2 not support But thanks for you help! best regards Stefan > Gesendet: Dienstag, 22. März 2022 um 08:17 Uhr > Von: "Pkshih" <pkshih@xxxxxxxxxxx> > An: "Stefan K" <shadow_7@xxxxxxx>, "linux-wireless@xxxxxxxxxxxxxxx" <linux-wireless@xxxxxxxxxxxxxxx> > Betreff: RE: rtw89: unstable connection > > 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 > >