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dschneider0103

Member

Registered: 2024-08-07

Posts: 1

Network issues with Realtek RTL8852be

Hello!

I think there are some issues with the network card Realtek RTL8852be 802.11ax on my new thinkpad E-series gen 6 AMD.
I have configured the network with networkmanager and use systemd-resolved for dns management.

When i ping a website i get much lag, and sometimes the network disconnects for about 5-30 seconds before it connects again.

PING google.com (2a00:1450:400f:802::200e) 56 data bytes
64 bytes from arn09s23-in-x0e.1e100.net (2a00:1450:400f:802::200e): icmp_seq=1 ttl=55 time=101 ms
64 bytes from arn09s23-in-x0e.1e100.net (2a00:1450:400f:802::200e): icmp_seq=2 ttl=55 time=535 ms
64 bytes from arn09s23-in-x0e.1e100.net (2a00:1450:400f:802::200e): icmp_seq=3 ttl=55 time=148 ms
64 bytes from arn09s23-in-x0e.1e100.net (2a00:1450:400f:802::200e): icmp_seq=4 ttl=55 time=172 ms
64 bytes from arn09s23-in-x0e.1e100.net (2a00:1450:400f:802::200e): icmp_seq=5 ttl=55 time=195 ms

--- google.com ping statistics ---
8 packets transmitted, 5 received, 37.5% packet loss, time 7025ms
rtt min/avg/max/mdev = 101.494/230.343/534.649/155.298 ms

I tried connecting with another usb-adapter (Ralink MT7610U) where i got these results:

PING google.com (2a00:1450:400f:80c::200e) 56 data bytes
64 bytes from arn09s19-in-x0e.1e100.net (2a00:1450:400f:80c::200e): icmp_seq=1 ttl=55 time=25.8 ms
64 bytes from arn09s19-in-x0e.1e100.net (2a00:1450:400f:80c::200e): icmp_seq=2 ttl=55 time=22.4 ms
64 bytes from arn09s19-in-x0e.1e100.net (2a00:1450:400f:80c::200e): icmp_seq=3 ttl=55 time=22.1 ms
64 bytes from arn09s19-in-x0e.1e100.net (2a00:1450:400f:80c::200e): icmp_seq=4 ttl=55 time=23.3 ms
64 bytes from arn09s19-in-x0e.1e100.net (2a00:1450:400f:80c::200e): icmp_seq=5 ttl=55 time=23.7 ms
64 bytes from arn09s19-in-x0e.1e100.net (2a00:1450:400f:80c::200e): icmp_seq=6 ttl=55 time=23.5 ms
64 bytes from arn09s19-in-x0e.1e100.net (2a00:1450:400f:80c::200e): icmp_seq=7 ttl=55 time=23.3 ms
64 bytes from arn09s19-in-x0e.1e100.net (2a00:1450:400f:80c::200e): icmp_seq=8 ttl=55 time=23.5 ms

--- google.com ping statistics ---
8 packets transmitted, 8 received, 0% packet loss, time 7013ms
rtt min/avg/max/mdev = 22.103/23.447/25.815/1.038 ms

Both uses the same network configuration

I also tried to edit:

/etc/modprobe.d/70-rtw89.conf
options rtw89_pci disable_clkreq=y
options rtw89_pci disable_aspm_l1=y
options rtw89_pci disable_aspm_l1ss=y

Which i found here https://bbs.archlinux.org/viewtopic.php?id=286109, this didnt help either.

I am not sure this is a network card issue, but i have seen some other related issues with the Realtek card.

I appreciate all help!
Thanks in advance

Last edited by dschneider0103 (2024-08-07 21:06:53)

agyarjanos

Member

Registered: 2024-08-12

Posts: 1

Re: Network issues with Realtek RTL8852be

Try

iwconfig

If you see "Power Management:on" in the results, try the below (assuming your network is wlan0; otherwise modify):

sudo iwconfig wlan0 power off

I got immediate results. However, for whatever reason, ssh is still quite slow to that machine. Ping time is great. I ended up using Thinlinc for remote access...

Hope this helps.

zynex

Member

Registered: 2019-03-20

Posts: 29

Re: Network issues with Realtek RTL8852be

Not sure if this is related to my issue, but there seems to be a bug in the latest kernel that makes the connection to be laggy. I have a couple of VM's running here, and I had to downgrade to kernel 6.10.1. After I did that everything was working again. I noticed this while streaming from my Jellyfin sever, the stream froze a lot and the server needed to transcode the video to keep up.

Last edited by zynex (2024-08-14 09:30:00)

barteqcz

Member

Registered: 2024-08-29

Posts: 1

Re: Network issues with Realtek RTL8852be

@agyarjanos Hi, I just registered to say thank you. I applied the thing with iwconfig, and i don't have any ping spikes anymore, even though it was jumping from 15ms to 160ms. Now it's stable