有线连接时光纤互联网速度太低(20.04)

有线连接时光纤互联网速度太低(20.04)

编辑:Windows 10 有同样的问题,但当我关闭 Ipv6 时,速度恢复正常。然而,在 Ubuntu 上关闭它并不能解决同样的问题。

我的 Windows 笔记本电脑速度最高可达 300 mbps,但当我将 LAN 电缆连接到 Ubuntu 20.04 时,速度最多只能达到 80 mpbs。

我尝试在有线连接设置中禁用 IPv6,但不起作用。似乎速度受到了限制。电缆是新的,在 Windows 上工作正常。路由器也一样。

这是 ifconfig 输出:

    enp2s0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet 192.168.100.6  netmask 255.255.255.0  broadcast 192.168.100.255
        inet6 fe80::e6b9:7aff:fef1:ab  prefixlen 64  scopeid 0x20<link>
        ether e4:b9:7a:f1:00:ab  txqueuelen 1000  (Ethernet)
        RX packets 86497  bytes 120876882 (120.8 MB)
        RX errors 0  dropped 15133  overruns 0  frame 0
        TX packets 22471  bytes 3146127 (3.1 MB)
        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 984  bytes 113734 (113.7 KB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 984  bytes 113734 (113.7 KB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

    1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
    inet 127.0.0.1/8 scope host lo
       valid_lft forever preferred_lft forever
    inet6 ::1/128 scope host 
       valid_lft forever preferred_lft forever
    2: enp2s0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel state UP group default qlen 1000
    link/ether e4:b9:7a:f1:00:ab brd ff:ff:ff:ff:ff:ff
    inet 192.168.100.6/24 brd 192.168.100.255 scope global dynamic noprefixroute enp2s0
       valid_lft 86159sec preferred_lft 86159sec
    inet6 fe80::e6b9:7aff:fef1:ab/64 scope link 
       valid_lft forever preferred_lft forever
3: wlo1: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN group default qlen 1000
    link/ether 98:2c:bc:76:2d:7f brd ff:ff:ff:ff:ff:ff
    altname wlp0s20f3

这是戴尔 Inspiron AiO。

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