LE 12.0.2 on Orange Pi PC 2 - broken network connection when idle

DJ Mogarych · January 24, 2025 at 7:57 AM

Hello!

I have Orange Pi PC 2 with ASUS USB-AC55 USB Wi-Fi adapter. Yesterday I updated it to LE 12.0.2 from 10.0.4. After the upgrade, the system connectivity started working very unstable and in a strange way. When it's active/playing, everything is OK and ping from another computer looks like this:

Code

64 bytes from 192.168.1.4: icmp_seq=1 ttl=64 time=3.35 ms
64 bytes from 192.168.1.4: icmp_seq=2 ttl=64 time=2.84 ms
64 bytes from 192.168.1.4: icmp_seq=3 ttl=64 time=3.10 ms
64 bytes from 192.168.1.4: icmp_seq=4 ttl=64 time=3.32 ms
64 bytes from 192.168.1.4: icmp_seq=5 ttl=64 time=5.06 ms
64 bytes from 192.168.1.4: icmp_seq=6 ttl=64 time=3.99 ms
64 bytes from 192.168.1.4: icmp_seq=7 ttl=64 time=3.88 ms
64 bytes from 192.168.1.4: icmp_seq=8 ttl=64 time=3.22 ms

When it's idle, ping shows the following:

Code

From 192.168.1.23 icmp_seq=1 Destination Host Unreachable
From 192.168.1.23 icmp_seq=2 Destination Host Unreachable
From 192.168.1.23 icmp_seq=3 Destination Host Unreachable
64 bytes from 192.168.1.4: icmp_seq=4 ttl=64 time=307 ms
64 bytes from 192.168.1.4: icmp_seq=5 ttl=64 time=2.42 ms
64 bytes from 192.168.1.4: icmp_seq=40 ttl=64 time=878 ms
64 bytes from 192.168.1.4: icmp_seq=41 ttl=64 time=2.49 ms
64 bytes from 192.168.1.4: icmp_seq=45 ttl=64 time=736 ms
64 bytes from 192.168.1.4: icmp_seq=46 ttl=64 time=2.18 ms
64 bytes from 192.168.1.4: icmp_seq=47 ttl=64 time=3.73 ms
64 bytes from 192.168.1.4: icmp_seq=48 ttl=64 time=86.7 ms
From 192.168.1.23 icmp_seq=55 Destination Host Unreachable
From 192.168.1.23 icmp_seq=56 Destination Host Unreachable
From 192.168.1.23 icmp_seq=57 Destination Host Unreachable

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The system can be completely unavailable via network or even shut down (or suspend/hibernate, anyway, it doesn't respond to any stimulus and I have to cycle the system power).

On version 10.0.4, there was not such a problem.

How to fix it? I suspect that something is wrong with power saving mode or so. The only thing I have enabled is the option "turn off screen after 5 minutes".
Here's the logs: https://paste.libreelec.tv/vital-chicken.log

**chewitt** · January 24, 2025 at 9:28 AM

Have you swapped the WiFi dongle from a USB 2.0 port to a USB 3.0 port? - If yes, move it back.

If no, see if this makes a difference (unlikely):

Code

echo "options mt76_usb disable_usb_sg=1" > /storage/.config/modprobe.d/mt76x2u.conf
reboot

Any difference?

DJ Mogarych · January 24, 2025 at 10:43 AM

Thank you for the response.

Orange Pi PC 2 has no USB 3.0 ports. I didn't change the dongle port.

Unfortunately, there's no difference after these commands.