我有 Ubuntu 22.04.2 LTS jammy，我使用有线连接互联网。我的问题是下载速度非常慢，下载速度非常慢。我的互联网连接很好，在某些网络中与其他设备的速度完美匹配。例如，如果我想在我的电脑上下载一个 2 gb 的文件，我需要 4 个小时才能下载，但在其他设备上我需要 7 分钟。我尝试了很多方法，但都没有成功，有什么想法可以解决这个问题吗？
这是我的设置：
sudo lshw -C 网络：
*-network
description: Ethernet interface
product: RTL8125 2.5GbE Controller
vendor: Realtek Semiconductor Co., Ltd.
physical id: 0
bus info: pci@0000:0d:00.0
logical name: enp13s0
version: 05
serial: d8:5e:d3:e2:42:15
size: 1Gbit/s
capacity: 1Gbit/s
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress msix vpd bus_master cap_list ethernet physical tp 10bt 10bt-fd 100bt 100bt-fd 1000bt-fd autonegotiation
configuration: autonegotiation=on broadcast=yes driver=r8125 driverversion=9.011.00-NAPI duplex=full ip=192.168.100.16 latency=0 link=yes multicast=yes port=twisted pair speed=1Gbit/s
resources: irq:35 ioport:f000(size=256) memory:80000000-8000ffff memory:80010000-80013fff
*-network
description: Network controller
product: MEDIATEK Corp.
vendor: MEDIATEK Corp.
physical id: 0
bus info: pci@0000:0e:00.0
logical name: /dev/fb0
version: 00
width: 64 bits
clock: 33MHz
capabilities: pciexpress msi pm bus_master cap_list fb
configuration: depth=32 driver=mt7921e latency=0 mode=1920x1080 visual=truecolor xres=1920 yres=1080
resources: iomemory:fc0-fbf irq:164 memory:fcf0300000-fcf03fffff memory:80100000-80107fff
sudo lspci：
00:00.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 14d8
00:01.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 14da
00:01.2 PCI bridge: Advanced Micro Devices, Inc. [AMD] Device 14db
00:02.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 14da
00:02.1 PCI bridge: Advanced Micro Devices, Inc. [AMD] Device 14db
00:03.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 14da
00:04.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 14da
00:08.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 14da
00:08.1 PCI bridge: Advanced Micro Devices, Inc. [AMD] Device 14dd
00:08.3 PCI bridge: Advanced Micro Devices, Inc. [AMD] Device 14dd
00:14.0 SMBus: Advanced Micro Devices, Inc. [AMD] FCH SMBus Controller (rev 71)
00:14.3 ISA bridge: Advanced Micro Devices, Inc. [AMD] FCH LPC Bridge (rev 51)
00:18.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 14e0
00:18.1 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 14e1
00:18.2 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 14e2
00:18.3 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 14e3
00:18.4 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 14e4
00:18.5 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 14e5
00:18.6 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 14e6
00:18.7 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 14e7
01:00.0 Non-Volatile memory controller: Samsung Electronics Co Ltd NVMe SSD Controller PM9A1/PM9A3/980PRO
02:00.0 PCI bridge: Advanced Micro Devices, Inc. [AMD] Device 43f4 (rev 01)
03:00.0 PCI bridge: Advanced Micro Devices, Inc. [AMD] Device 43f5 (rev 01)
03:04.0 PCI bridge: Advanced Micro Devices, Inc. [AMD] Device 43f5 (rev 01)
03:05.0 PCI bridge: Advanced Micro Devices, Inc. [AMD] Device 43f5 (rev 01)
03:06.0 PCI bridge: Advanced Micro Devices, Inc. [AMD] Device 43f5 (rev 01)
03:07.0 PCI bridge: Advanced Micro Devices, Inc. [AMD] Device 43f5 (rev 01)
03:08.0 PCI bridge: Advanced Micro Devices, Inc. [AMD] Device 43f5 (rev 01)
03:0c.0 PCI bridge: Advanced Micro Devices, Inc. [AMD] Device 43f5 (rev 01)
03:0d.0 PCI bridge: Advanced Micro Devices, Inc. [AMD] Device 43f5 (rev 01)
09:00.0 PCI bridge: Advanced Micro Devices, Inc. [AMD] Device 43f4 (rev 01)
0a:00.0 PCI bridge: Advanced Micro Devices, Inc. [AMD] Device 43f5 (rev 01)
0a:04.0 PCI bridge: Advanced Micro Devices, Inc. [AMD] Device 43f5 (rev 01)
0a:06.0 PCI bridge: Advanced Micro Devices, Inc. [AMD] Device 43f5 (rev 01)
0a:07.0 PCI bridge: Advanced Micro Devices, Inc. [AMD] Device 43f5 (rev 01)
0a:08.0 PCI bridge: Advanced Micro Devices, Inc. [AMD] Device 43f5 (rev 01)
0a:0c.0 PCI bridge: Advanced Micro Devices, Inc. [AMD] Device 43f5 (rev 01)
0a:0d.0 PCI bridge: Advanced Micro Devices, Inc. [AMD] Device 43f5 (rev 01)
0d:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8125 2.5GbE Controller (rev 05)
0e:00.0 Network controller: MEDIATEK Corp. Device 0616
10:00.0 USB controller: Advanced Micro Devices, Inc. [AMD] Device 43f7 (rev 01)
11:00.0 SATA controller: Advanced Micro Devices, Inc. [AMD] Device 43f6 (rev 01)
12:00.0 USB controller: Advanced Micro Devices, Inc. [AMD] Device 43f7 (rev 01)
13:00.0 SATA controller: Advanced Micro Devices, Inc. [AMD] Device 43f6 (rev 01)
14:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Device 164e (rev c1)
14:00.1 Audio device: Advanced Micro Devices, Inc. [AMD/ATI] Device 1640
14:00.2 Encryption controller: Advanced Micro Devices, Inc. [AMD] VanGogh PSP/CCP
14:00.3 USB controller: Advanced Micro Devices, Inc. [AMD] Device 15b6
14:00.4 USB controller: Advanced Micro Devices, Inc. [AMD] Device 15b7
14:00.6 Audio device: Advanced Micro Devices, Inc. [AMD] Family 17h (Models 10h-1fh) HD Audio Controller
15:00.0 USB controller: Advanced Micro Devices, Inc. [AMD] Device 15b8
IP 链接：
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN mode DEFAULT group default qlen 1000
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
2: enp13s0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP mode DEFAULT group default qlen 1000
link/ether d8:5e:d3:e2:42:15 brd ff:ff:ff:ff:ff:ff
ethtool enp13s0：
Settings for enp13s0:
Supported ports: [ TP ]
Supported link modes: 10baseT/Half 10baseT/Full
100baseT/Half 100baseT/Full
1000baseT/Full
2500baseT/Full
Supported pause frame use: Symmetric Receive-only
Supports auto-negotiation: Yes
Supported FEC modes: Not reported
Advertised link modes: 10baseT/Half 10baseT/Full
100baseT/Half 100baseT/Full
1000baseT/Full
Advertised pause frame use: Symmetric Receive-only
Advertised auto-negotiation: Yes
Advertised FEC modes: Not reported
Link partner advertised link modes: 10baseT/Half 10baseT/Full
100baseT/Half 100baseT/Full
1000baseT/Full
Link partner advertised pause frame use: Symmetric Receive-only
Link partner advertised auto-negotiation: Yes
Link partner advertised FEC modes: Not reported
Speed: 1000Mb/s
Duplex: Full
Auto-negotiation: on
Port: Twisted Pair
PHYAD: 0
Transceiver: internal
MDI-X: Unknown
netlink error: Operation not permitted
Current message level: 0x00000033 (51)
drv probe ifdown ifup
Link detected: yes
速度测试-cli：
Retrieving speedtest.net configuration...
Testing from HCN - Hellenic Cable Networks (xx.xx.xxx.xxx)...
Retrieving speedtest.net server list...
Selecting best server based on ping...
Hosted by DATACOM JV (Skopje) [197.18 km]: 83.45 ms
Testing download speed................................................................................
Download: 6.46 Mbit/s
Testing upload speed......................................................................................................
ping-c 10 8.8.8.8：
PING 8.8.8.8 (8.8.8.8) 56(84) bytes of data.
64 bytes from 8.8.8.8: icmp_seq=1 ttl=112 time=54.1 ms
64 bytes from 8.8.8.8: icmp_seq=2 ttl=112 time=53.4 ms
64 bytes from 8.8.8.8: icmp_seq=3 ttl=112 time=53.8 ms
64 bytes from 8.8.8.8: icmp_seq=4 ttl=112 time=53.5 ms
64 bytes from 8.8.8.8: icmp_seq=5 ttl=112 time=54.1 ms
64 bytes from 8.8.8.8: icmp_seq=6 ttl=112 time=54.2 ms
64 bytes from 8.8.8.8: icmp_seq=7 ttl=112 time=53.8 ms
64 bytes from 8.8.8.8: icmp_seq=8 ttl=112 time=54.0 ms
64 bytes from 8.8.8.8: icmp_seq=9 ttl=112 time=52.8 ms
64 bytes from 8.8.8.8: icmp_seq=10 ttl=112 time=53.2 ms
--- 8.8.8.8 ping statistics ---
10 packets transmitted, 10 received, 0% packet loss, time 9015ms
rtt min/avg/max/mdev = 52.847/53.682/54.154/0.405 ms
nmcli dev 显示 enp13s0：
GENERAL.DEVICE: enp13s0
GENERAL.TYPE: ethernet
GENERAL.HWADDR: D8:5E:D3:E2:42:15
GENERAL.MTU: 1500
GENERAL.STATE: 10 (unmanaged)
GENERAL.CONNECTION: --
GENERAL.CON-PATH: --
WIRED-PROPERTIES.CARRIER: on
IP4.ADDRESS[1]: xxx.xxx.xxx.16/24
IP4.GATEWAY: xxx.xxx.xxx.1
IP4.ROUTE[1]: dst = 0.0.0.0/0, nh =xxx.xxx.xxx.1, mt = 0
IP4.ROUTE[2]: dst =xxx.xxx.xxx.0/24, nh = 0.0.0.0, mt = 0
IP6.ADDRESS[1]: fe80::da5e:d3ff:fee2:4215/64
IP6.GATEWAY: --
IP6.ROUTE[1]: dst = fe80::/64, nh = ::, mt = 256
sudo systemctl status systemd-resolved：
● systemd-resolved.service - Network Name Resolution
Loaded: loaded (/lib/systemd/system/systemd-resolved.service; enabled; vendor preset: enabled)
Active: active (running) since Fri 2023-03-31 02:11:01 EEST; 1h 34min ago
Docs: man:systemd-resolved.service(8)
man:org.freedesktop.resolve1(5)
https://www.freedesktop.org/wiki/Software/systemd/writing-network-configuration-managers
https://www.freedesktop.org/wiki/Software/systemd/writing-resolver-clients
Main PID: 4366 (systemd-resolve)
Status: "Processing requests..."
Tasks: 1 (limit: 37328)
Memory: 4.4M
CPU: 41ms
CGroup: /system.slice/systemd-resolved.service
└─4366 /lib/systemd/systemd-resolved
Μusername-mystyme systemd[1]: Starting Network Name Resolution...
username-mystyme systemd-resolved[4366]: Positive Trust Anchors:
username-mystyme systemd-resolved[4366]: . IN DS 20326 8 2 e06d44b80b8f1d39a95c0b0d7c65d08458e880409bbc683457104237c7f8ec8d
username-mystyme systemd-resolved[4366]: Negative trust anchors: home.arpa 10.in-addr.arpa 16.172.in-addr.arpa 17.172.in-add>
username-mystyme systemd-resolved[4366]: Using system hostname 'username-mystyme'.
username-mystyme systemd[1]: Started Network Name Resolution.
nmcli 连接显示：
enp13s0 7115fd2f-9814-4ec8-ab83-9fc5a9b990c1 ethernet enp13s0
enp13s0 8485cf8e-db53-4537-8178-4eafd5083e06 ethernet --
enp13s0 f0472113-cd46-490f-b72e-06673fee6df2 ethernet --
Ενσύρματη σύνδεση 1 5e8d5574-99ee-3252-bb27-a32c833241df ethernet --