[PLUG] Connection speed suddenly dropped

John Jason Jordan johnxj at gmx.com
Tue Apr 27 22:54:35 UTC 2021


On Tue, 27 Apr 2021 13:16:21 -0700
Russell Senior <russell at personaltelco.net> dijo:

>On the computer you are running the 90Mbps test from, check the
>content the interface's speed file (this example assumes your ethernet
>interface is eth0):
>
>  $ cat /sys/class/net/eth0/speed
>  1000

Here is the results from ifconfig:

enp0s31f6: flags=4099<UP,BROADCAST,MULTICAST>  mtu 1500
        ether f8:75:a4:37:2a:e2  txqueuelen 1000  (Ethernet)
        RX packets 0  bytes 0 (0.0 B)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 0  bytes 0 (0.0 B)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0
        device interrupt 16  memory 0xeb400000-eb420000

enx3ce1a1c0dbfc: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet 192.168.1.170  netmask 255.255.255.0  broadcast
192.168.1.255 inet6 2602:61:736b:e800:9688:c939:50f2:2556  prefixlen 64
 scopeid 0x0<global> inet6 2602:61:736b:e800:b5f7:1895:7076:c093
prefixlen 64  scopeid 0x0<global> inet6 fe80::b4fe:1bed:3935:22a3
prefixlen 64  scopeid 0x20<link> inet6 2602:61:736b:e800::62e
prefixlen 128  scopeid 0x0<global> ether 3c:e1:a1:c0:db:fc  txqueuelen
1000  (Ethernet) RX packets 155567648  bytes 72723919329 (72.7 GB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 332252370  bytes 317579255790 (317.5 GB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

lo: flags=73<UP,LOOPBACK,RUNNING>  mtu 65536
        inet 127.0.0.1  netmask 255.0.0.0
        inet6 ::1  prefixlen 128  scopeid 0x10<host>
        loop  txqueuelen 1000  (Local Loopback)
        RX packets 3007673  bytes 279744544 (279.7 MB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 3007673  bytes 279744544 (279.7 MB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

wg-mullvad: flags=209<UP,POINTOPOINT,RUNNING,NOARP>  mtu 1380
        inet 10.107.103.171  netmask 255.255.255.255  destination
10.107.103.171 inet6 fe80::1656:56a6:9e27:7677  prefixlen 64  scopeid
0x20<link> inet6 fc00:bbbb:bbbb:bb01::2c:67aa  prefixlen 128  scopeid
0x0<global> unspec 00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00
txqueuelen 1000  (UNSPEC) RX packets 1801838  bytes 1267327304 (1.2 GB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 2787973  bytes 1948932988 (1.9 GB)
        TX errors 0  dropped 68 overruns 0  carrier 0  collisions 0

wlp82s0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet 192.168.1.163  netmask 255.255.255.0  broadcast
192.168.1.255 inet6 fe80::1924:77b1:1f35:bc9a  prefixlen 64  scopeid
0x20<link> inet6 2602:61:736b:e800::62e  prefixlen 128  scopeid
0x0<global> inet6 2602:61:736b:e800:c1af:5e74:77ef:d686  prefixlen 64
scopeid 0x0<global> inet6 2602:61:736b:e800:f257:5e0a:3a1c:2aaf
prefixlen 64  scopeid 0x0<global> ether 94:e6:f7:b5:54:37  txqueuelen
1000  (Ethernet) RX packets 83460  bytes 18195866 (18.1 MB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 79766  bytes 30914619 (30.9 MB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

The 90 Mbps computer is the laptop.

The wg-mullvad above is my vpn.

192.168.1.170 is the address given to the laptop by the router for
ethernet, and 192.168.1.163 is for its wifi. In the command 'cat
/sys/class/net/eth0/speed 1000' I tried changing 'eth0' to wlp82s0 and
to enx3ce1a1c0dbfc, but each resulted in 'Invalid argument' and 'no
such file or directory. I must not be doing something right.



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