Shen En Chen

@Myy yes, after down and up the interface, I have network, but the system still unstable. The network still randomly drops.

What I did today was monitoring the temperature and RAM usage every 10 seconds while watching youtube video at 1080p. And after a while, the network dropped like before. During this time, the highest temperature was 68C. Both armbianmonitor and ramtempck-20200401 attached. while :; do file=ramtempck-20200401; touch $file; date >> $file ; temp >> $file ; free -h >> $file; sleep 10; done Are we able to tell it is the temperature causing issues or RAM leak? armbianmonitor.20200401.txt ramtempck-20200401

Running glmark2-es2 and http://luic.github.io/WebGL-Performance-Benchmark/benchmark/cubes.html not efficient to make temperautre go beyound 55C. I realize if I turning on VNC Server in the background, and watch video streaming such as cnn.com or other online video such as youtube with high quality, the chances of getting into crashes are high. Any way to see what is eating the memory? Thanks!

Just had another crash. Unable to upload armbianmonitor -u, so here I attached armbianmonitor -U here. I found the /sys/class/thermal zone for temperature. While I monitored it, the temperature was highest at 69.x C in zone0, and 65.x C in zone0. ip link set eth0 down & ip link set eth0 up was able to bring back the network. However, the system became very slow and nearly unusable. Then after a few minutes, the system crashed totally. I had to power off and on in order for the system to be normal. After system reboots, the temperature is 42 C. Not sure if it is the high temperature causing the issue. Any other way to troubleshoot? Thanks armbianmonitor.txt

Ethernet cable was used. Wireless not set. At the time of uploading armbianmonitor, network was up with Ethernet. Don't know why in armbianmonitor eth0 and wlan0 were off. When network was down, ping 1.1.1.1 was unreachable. At this time, I do not know how to assess CPU temperature in Armbian. ifdown and ifup did not work. Will try the following ip link set eth0 down ip link set eth0 up next time when network is down again. Thanks!

I have Tinker Board S. I have been using both Tinker OS and Armbian for a while. Recently I upgraded to 5.4.28-rockchip. I noticed that randomly and frequently when I watch cnn.com or other media, my video would freeze. Initially I thought the firefox or chromium crashes. However, later, I realized it was the network issue. Other devices were still able to connect to the internet. When I checked the ifconfig, the network devices still showed proper connection. However, there is no way to ping any URLs. Disconnecting/reconnecting network does not fix the issue. The only fix was reboot. How can I troubleshoot this issue? I was trying to do armbianmonitor but at that time, there was no network at all. http://ix.io/2fVR This is armbianmonitor after reboot and no problem at all. for baseline reference.