I have a v1.2 Rockpi S with 512MB of RAM, while using the latest Armbian Focal and Buster images (20.08.1 with kernel 4.4.y), I have been experiencing WIFI issues. The device connects to the Access Point and maintains the connection but every minute or two the SSH connection hangs or freezes for several seconds and then comes back and prints everything that when on during the period it was not responsive. When I used the images with the 5.8.y kernel, I did not experience the same issue. In all cases wired ethernet (eth0) is not effected by the issue. Continuously pinging a local system shows the below result. Other WIFI devices on the same network do not experience this issue and I have tested it on two separate Rockpi S devices and 2 different Micro-SD cards. The power supply is a 15W USB-C power supply and I do not suspect it to be the issue.
$ ping 192.168.1.1
PING 192.168.1.1 (192.168.1.1) 56(84) bytes of data.
64 bytes from 192.168.1.1: icmp_seq=1 ttl=64 time=4.55 ms
64 bytes from 192.168.1.1: icmp_seq=2 ttl=64 time=4.18 ms
64 bytes from 192.168.1.1: icmp_seq=3 ttl=64 time=4.06 ms
64 bytes from 192.168.1.1: icmp_seq=4 ttl=64 time=4.70 ms
64 bytes from 192.168.1.1: icmp_seq=5 ttl=64 time=6.50 ms
64 bytes from 192.168.1.1: icmp_seq=6 ttl=64 time=3.42 ms
64 bytes from 192.168.1.1: icmp_seq=7 ttl=64 time=5.48 ms
64 bytes from 192.168.1.1: icmp_seq=8 ttl=64 time=6.84 ms
64 bytes from 192.168.1.1: icmp_seq=9 ttl=64 time=3.41 ms
64 bytes from 192.168.1.1: icmp_seq=10 ttl=64 time=4.34 ms
64 bytes from 192.168.1.1: icmp_seq=11 ttl=64 time=5.94 ms 64 bytes from 192.168.1.1: icmp_seq=12 ttl=64 time=6005 ms
64 bytes from 192.168.1.1: icmp_seq=13 ttl=64 time=4998 ms
64 bytes from 192.168.1.1: icmp_seq=14 ttl=64 time=3990 ms
64 bytes from 192.168.1.1: icmp_seq=15 ttl=64 time=2982 ms
64 bytes from 192.168.1.1: icmp_seq=16 ttl=64 time=1974 ms
64 bytes from 192.168.1.1: icmp_seq=17 ttl=64 time=966 ms
64 bytes from 192.168.1.1: icmp_seq=18 ttl=64 time=3.58 ms
64 bytes from 192.168.1.1: icmp_seq=19 ttl=64 time=3.26 ms
64 bytes from 192.168.1.1: icmp_seq=20 ttl=64 time=5.30 ms
Steps to reproduce:
1. Install Armbian Focal with Kernel 4.4.y (Armbian_20.08.1_Rockpi-s_focal_legacy_4.4.228_minimal.img.xz)
2. Complete the standard installation/setup using wired ethernet
3. Configure and enable WIFI access using armbian-config on the wlan0 interface (note: same issue occurs when p2p0 is used)
4. Disconnect the eth0 cable
5. SSH to Rockpi S using WIFI/wlan0
6. Execute ping command to another device on the local network
Not sure where else to look to see if I can identify the cause, any pointers would be appreciated.
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Question
lrose
I have a v1.2 Rockpi S with 512MB of RAM, while using the latest Armbian Focal and Buster images (20.08.1 with kernel 4.4.y), I have been experiencing WIFI issues. The device connects to the Access Point and maintains the connection but every minute or two the SSH connection hangs or freezes for several seconds and then comes back and prints everything that when on during the period it was not responsive. When I used the images with the 5.8.y kernel, I did not experience the same issue. In all cases wired ethernet (eth0) is not effected by the issue. Continuously pinging a local system shows the below result. Other WIFI devices on the same network do not experience this issue and I have tested it on two separate Rockpi S devices and 2 different Micro-SD cards. The power supply is a 15W USB-C power supply and I do not suspect it to be the issue.
$ ping 192.168.1.1
PING 192.168.1.1 (192.168.1.1) 56(84) bytes of data.
64 bytes from 192.168.1.1: icmp_seq=1 ttl=64 time=4.55 ms
64 bytes from 192.168.1.1: icmp_seq=2 ttl=64 time=4.18 ms
64 bytes from 192.168.1.1: icmp_seq=3 ttl=64 time=4.06 ms
64 bytes from 192.168.1.1: icmp_seq=4 ttl=64 time=4.70 ms
64 bytes from 192.168.1.1: icmp_seq=5 ttl=64 time=6.50 ms
64 bytes from 192.168.1.1: icmp_seq=6 ttl=64 time=3.42 ms
64 bytes from 192.168.1.1: icmp_seq=7 ttl=64 time=5.48 ms
64 bytes from 192.168.1.1: icmp_seq=8 ttl=64 time=6.84 ms
64 bytes from 192.168.1.1: icmp_seq=9 ttl=64 time=3.41 ms
64 bytes from 192.168.1.1: icmp_seq=10 ttl=64 time=4.34 ms
64 bytes from 192.168.1.1: icmp_seq=11 ttl=64 time=5.94 ms
64 bytes from 192.168.1.1: icmp_seq=12 ttl=64 time=6005 ms
64 bytes from 192.168.1.1: icmp_seq=13 ttl=64 time=4998 ms
64 bytes from 192.168.1.1: icmp_seq=14 ttl=64 time=3990 ms
64 bytes from 192.168.1.1: icmp_seq=15 ttl=64 time=2982 ms
64 bytes from 192.168.1.1: icmp_seq=16 ttl=64 time=1974 ms
64 bytes from 192.168.1.1: icmp_seq=17 ttl=64 time=966 ms
64 bytes from 192.168.1.1: icmp_seq=18 ttl=64 time=3.58 ms
64 bytes from 192.168.1.1: icmp_seq=19 ttl=64 time=3.26 ms
64 bytes from 192.168.1.1: icmp_seq=20 ttl=64 time=5.30 ms
Steps to reproduce:
1. Install Armbian Focal with Kernel 4.4.y (Armbian_20.08.1_Rockpi-s_focal_legacy_4.4.228_minimal.img.xz)
2. Complete the standard installation/setup using wired ethernet
3. Configure and enable WIFI access using armbian-config on the wlan0 interface (note: same issue occurs when p2p0 is used)
4. Disconnect the eth0 cable
5. SSH to Rockpi S using WIFI/wlan0
6. Execute ping command to another device on the local network
Not sure where else to look to see if I can identify the cause, any pointers would be appreciated.
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