我在 Ubuntu 中发现 Wi-Fi 速度非常慢，不知道问题出在哪里。
我尝试了互联网上所有可用的解决方案，但似乎没有改善。
此外，它无法检测网络变化，如果我从一个 wifi 移动到另一个 wifi，我必须重新启动网络管理器和网络服务才能检测新的 wifi。
如果没有任何效果的话，我正在考虑迁移到 Windows 10。
*-network
description: Wireless interface
product: Wireless 7265
vendor: Intel Corporation
physical id: 0
bus info: pci@0000:03:00.0
logical name: wlp3s0
version: 59
serial: dc:53:60:77:9f:25
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless
configuration: broadcast=yes driver=iwlwifi driverversion=4.4.0-59-generic firmware=17.352738.0 ip=192.168.0.11 latency=0 link=yes multicast=yes wireless=IEEE 802.11abgn
resources: irq:53 memory:f7100000-f7101fff
网络的 Wifi 强度。
egnyte@DL0019 ~ $%nmcli d wifi ──(Tue,Jan31)─┘
* SSID MODE CHAN RATE SIGNAL BARS SECURITY
* b54308 Infra 11 54 Mbit/s 58 ▂▄▆_ WPA1 WPA2
我已经尝试过以下解决方案 Ubuntu 16.04 上的网络连接非常慢 https://ubuntuforums.org/showthread.php?t=2246002
sudo iw reg get
country PL: DFS-ETSI
(2402 - 2482 @ 40), (N/A, 20), (N/A)
(5170 - 5250 @ 80), (N/A, 20), (N/A)
(5250 - 5330 @ 80), (N/A, 20), (0 ms), DFS
(5490 - 5710 @ 160), (N/A, 27), (0 ms), DFS
(57000 - 66000 @ 2160), (N/A, 40), (N/A)
cat /etc/default/crda
# Set REGDOMAIN to a ISO/IEC 3166-1 alpha2 country code so that iw(8) may set
# the initial regulatory domain setting for IEEE 802.11 devices which operate
# on this system.
#
# Governments assert the right to regulate usage of radio spectrum within
# their respective territories so make sure you select a ISO/IEC 3166-1 alpha2
# country code suitable for your location or you may infringe on local
# legislature. See `/usr/share/zoneinfo/zone.tab' for a table of timezone
# descriptions containing ISO/IEC 3166-1 alpha2 country codes.
REGDOMAIN=PL
输出sudo iwlist scan
wlp3s0 Scan completed :
Cell 01 - Address: xx:xx:xx:xx:xx:xx
Channel:11
Frequency:2.462 GHz (Channel 11)
Quality=38/70 Signal level=-72 dBm
Encryption key:on
ESSID:"b54308"
Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 18 Mb/s
24 Mb/s; 36 Mb/s; 54 Mb/s
Bit Rates:6 Mb/s; 9 Mb/s; 12 Mb/s; 48 Mb/s
Mode:Master
Extra:tsf=000000039e775843
Extra: Last beacon: 220ms ago
IE: Unknown: 0006623534333038
IE: Unknown: 010882848B962430486C
IE: Unknown: 03010B
IE: Unknown: 2A0100
IE: Unknown: 2F0100
IE: IEEE 802.11i/WPA2 Version 1
Group Cipher : CCMP
Pairwise Ciphers (1) : CCMP
Authentication Suites (1) : PSK
IE: Unknown: 32040C121860
IE: Unknown: 0B050100320000
IE: Unknown: 2D1ABC191BFFFF000000000000000000000000000000000000000000
IE: Unknown: 3D160B081500000000000000000000000000000000000000
IE: Unknown: 4A0E14000A002C01C800140005001900
IE: Unknown: 7F080500080000000040
IE: Unknown: DD090010180201000C0000
IE: WPA Version 1
Group Cipher : CCMP
Pairwise Ciphers (1) : CCMP
Authentication Suites (1) : PSK
IE: Unknown: DD180050F2020101840003A4000027A4000042435E0062322F00
IE: Unknown: 46057208010000
Cell 02 - Address:xx:xx:xx:xx:xx:xx
Channel:2
Frequency:2.417 GHz (Channel 2)
Quality=18/70 Signal level=-92 dBm
Encryption key:on
ESSID:"HUAWEI-B315-A548"
Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 18 Mb/s
24 Mb/s; 36 Mb/s; 54 Mb/s
Bit Rates:6 Mb/s; 9 Mb/s; 12 Mb/s; 48 Mb/s
Mode:Master
Extra:tsf=00000008041fc18b
Extra: Last beacon: 632ms ago
IE: Unknown: 00104855415745492D423331352D41353438
IE: Unknown: 010882840B162430486C
IE: Unknown: 030102
IE: Unknown: 050400010000
IE: Unknown: 2A0100
IE: Unknown: 2F0100
IE: IEEE 802.11i/WPA2 Version 1
Group Cipher : TKIP
Pairwise Ciphers (2) : CCMP TKIP
Authentication Suites (1) : PSK
IE: Unknown: 32040C121860
IE: Unknown: 2D1ABC1917FFFF000000000000000000000000000000000000000000
IE: Unknown: 3D1602080000000000000000000000000000000000000000
IE: Unknown: 4A0E14000A002C01C800140005001900
IE: Unknown: 7F080500000000000040
IE: Unknown: DD090010180200000C0000
IE: WPA Version 1
Group Cipher : TKIP
Pairwise Ciphers (2) : CCMP TKIP
Authentication Suites (1) : PSK
IE: Unknown: DD180050F2020101840003A4000027A4000042435E0062322F00
IE: Unknown: 46057208010000
Cell 03 - Address: xx:xx:xx:xx:xx:xx
Channel:3
Frequency:2.422 GHz (Channel 3)
Quality=29/70 Signal level=-81 dBm
Encryption key:on
ESSID:"b93ebe"
Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 18 Mb/s
24 Mb/s; 36 Mb/s; 54 Mb/s
Bit Rates:6 Mb/s; 9 Mb/s; 12 Mb/s; 48 Mb/s
Mode:Master
Extra:tsf=000000020853406a
Extra: Last beacon: 584ms ago
IE: Unknown: 0006623933656265
IE: Unknown: 010882848B962430486C
IE: Unknown: 030103
IE: Unknown: 2A0104
IE: Unknown: 2F0104
IE: IEEE 802.11i/WPA2 Version 1
Group Cipher : CCMP
Pairwise Ciphers (1) : CCMP
Authentication Suites (1) : PSK
IE: Unknown: 32040C121860
IE: Unknown: 0B0501000B0000
IE: Unknown: 2D1ABC191BFFFF000001000000000000000000000000000000000000
IE: Unknown: 3D1603001300000000000000000000000000000000000000
IE: Unknown: 4A0E14000A002C01C800140005001900
IE: Unknown: 7F080500080000000040
IE: Unknown: DD090010180201000C0000
IE: Unknown: DD180050F2020101880003A4000027A4000042435E0062322F00
IE: Unknown: 46057208010000
Cell 04 - Address: xx:xx:xx:xx:xx:xx
Channel:4
Frequency:2.427 GHz (Channel 4)
Quality=22/70 Signal level=-88 dBm
Encryption key:on
ESSID:"Jakubowice"
Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 6 Mb/s; 9 Mb/s
11 Mb/s; 12 Mb/s; 18 Mb/s
Bit Rates:24 Mb/s; 36 Mb/s; 48 Mb/s; 54 Mb/s
Mode:Master
Extra:tsf=000000b940050526
Extra: Last beacon: 576ms ago
IE: Unknown: 000A4A616B75626F77696365
IE: Unknown: 010882848B0C12961824
IE: Unknown: 030104
IE: Unknown: 2A0100
IE: Unknown: 32043048606C
IE: Unknown: 2D1A2C0000FFFF000000000000000000000000000000000000000000
IE: Unknown: 3D1604000300000000000000000000000000000000000000
IE: WPA Version 1
Group Cipher : TKIP
Pairwise Ciphers (2) : CCMP TKIP
Authentication Suites (1) : PSK
IE: IEEE 802.11i/WPA2 Version 1
Group Cipher : TKIP
Pairwise Ciphers (2) : CCMP TKIP
Authentication Suites (1) : PSK
IE: Unknown: DD180050F2020101800003A4000027A4000042435E0062322F00
IE: Unknown: DD640050F204104A0001101044000102103B00010310470010325529669ACE1D9E2E3CA1B98B9A8256102100035A544510230006536F66744150102400013010420001301054000800060050F20400011011000241501008000202841049000600372A000120
Cell 05 - Address: xx:xx:xx:xx:xx:xx
Channel:5
Frequency:2.432 GHz (Channel 5)
Quality=21/70 Signal level=-89 dBm
Encryption key:on
ESSID:"BEE"
Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 6 Mb/s
9 Mb/s; 12 Mb/s; 18 Mb/s
Bit Rates:24 Mb/s; 36 Mb/s; 48 Mb/s; 54 Mb/s
Mode:Master
Extra:tsf=0000001637b936cb
Extra: Last beacon: 540ms ago
IE: Unknown: 0003424545
IE: Unknown: 010882848B960C121824
IE: Unknown: 030105
IE: Unknown: 2A0100
IE: IEEE 802.11i/WPA2 Version 1
Group Cipher : CCMP
Pairwise Ciphers (1) : CCMP
Authentication Suites (1) : PSK
IE: Unknown: 32043048606C
IE: Unknown: 2D1AEF1103FFFF0000000000000000000000000000000406E6E70D00
IE: Unknown: 331AEF1103FFFF0000000000000000000000000000000406E6E70D00
IE: Unknown: 3D1605051300000000000000000000000000000000000000
IE: Unknown: 341605051300000000000000000000000000000000000000
IE: WPA Version 1
Group Cipher : CCMP
Pairwise Ciphers (1) : CCMP
Authentication Suites (1) : PSK
IE: Unknown: DD180050F2020101040003A4000027A4000042435E0062322F00
IE: Unknown: DD0900037F01010000FF7F
IE: Unknown: DD9E0050F204104A0001101044000102103B00010310470010000102030405060708090A0B0C0D0E0F1021000754502D4C494E4B10230009544C2D4D523334323010240003322E3010420003312E301054000800060050F20400011011001E576972656C657373204E2033472F344720526F75746572204D5233343230100800020086103C000101104900140024E26002000101600000020001600100020001
Cell 06 - Address: xx:xx:xx:xx:xx:xx
Channel:6
Frequency:2.437 GHz (Channel 6)
Quality=24/70 Signal level=-86 dBm
Encryption key:on
ESSID:"SuperSiec"
Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 18 Mb/s
24 Mb/s; 36 Mb/s; 54 Mb/s
Bit Rates:6 Mb/s; 9 Mb/s; 12 Mb/s; 48 Mb/s
Mode:Master
Extra:tsf=000000c7b77a7a04
Extra: Last beacon: 504ms ago
IE: Unknown: 0009537570657253696563
IE: Unknown: 010882848B962430486C
IE: Unknown: 030106
IE: Unknown: 2A0104
IE: Unknown: 2F0104
IE: IEEE 802.11i/WPA2 Version 1
Group Cipher : TKIP
Pairwise Ciphers (2) : CCMP TKIP
Authentication Suites (1) : PSK
IE: Unknown: 32040C121860
IE: Unknown: 0B050300190000
IE: Unknown: 2D1ABC191BFFFF000000000000000000000000000000000000000000
IE: Unknown: 3D1606080400000000000000000000000000000000000000
IE: Unknown: 4A0E14000A002C01C800140005001900
IE: Unknown: 7F080500080000000040
IE: Unknown: DD090010180203000C0000
IE: WPA Version 1
Group Cipher : TKIP
Pairwise Ciphers (2) : CCMP TKIP
Authentication Suites (1) : PSK
IE: Unknown: DD180050F2020101880003A4000027A4000042435E0062322F00
IE: Unknown: 46057208010000
Cell 07 - Address: xx:xx:xx:xx:xx:xx
Channel:6
Frequency:2.437 GHz (Channel 6)
Quality=35/70 Signal level=-75 dBm
Encryption key:on
ESSID:"Sweet_Amber"
Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 6 Mb/s
9 Mb/s; 12 Mb/s; 18 Mb/s
Bit Rates:24 Mb/s; 36 Mb/s; 48 Mb/s; 54 Mb/s
Mode:Master
Extra:tsf=0000024d312b45fb
Extra: Last beacon: 500ms ago
IE: Unknown: 000B53776565745F416D626572
IE: Unknown: 010882848B960C121824
IE: Unknown: 030106
IE: Unknown: 0706504C20010D14
IE: Unknown: 2A0100
IE: IEEE 802.11i/WPA2 Version 1
Group Cipher : CCMP
Pairwise Ciphers (1) : CCMP
Authentication Suites (1) : PSK
IE: Unknown: 32043048606C
IE: Unknown: 2D1A6E1103FF00000000000000000000000000000000000000000000
IE: Unknown: 331A6E1103FF00000000000000000000000000000000000000000000
IE: Unknown: 3D1606071500000000000000000000000000000000000000
IE: Unknown: 341606071500000000000000000000000000000000000000
IE: WPA Version 1
Group Cipher : CCMP
Pairwise Ciphers (1) : CCMP
Authentication Suites (1) : PSK
IE: Unknown: DD180050F2020101830003A4000027A4000042435E0062322F00
IE: Unknown: DD0900037F01010000FF7F
IE: Unknown: DD990050F204104A0001101044000102103B0001031047001000000000000010000000F8D1117395101021000754502D4C494E4B10230009544C2D57523734304E10240003342E3010420003312E301054000800060050F204000110110019576972656C65737320526F7574657220544C2D57523734304E100800020086103C000101104900140024E26002000101600000020001600100020001
Cell 08 - Address: xx:xx:xx:xx:xx:xx
Channel:7
Frequency:2.442 GHz (Channel 7)
Quality=24/70 Signal level=-86 dBm
Encryption key:on
ESSID:"Salon Shenti"
Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 6 Mb/s
9 Mb/s; 12 Mb/s; 18 Mb/s
Bit Rates:24 Mb/s; 36 Mb/s; 48 Mb/s; 54 Mb/s
Mode:Master
Extra:tsf=000001101c0a3c2a
Extra: Last beacon: 476ms ago
IE: Unknown: 000C53616C6F6E205368656E7469
IE: Unknown: 010882848B960C121824
IE: Unknown: 030107
IE: Unknown: 2A0100
IE: Unknown: 32043048606C
IE: Unknown: DD180050F2020101800003A4000027A4000042435E0062322F00
IE: Unknown: DD0900037F01010000FF7F
Cell 09 - Address: xx:xx:xx:xx:xx:xx
Channel:7
Frequency:2.442 GHz (Channel 7)
Quality=30/70 Signal level=-80 dBm
Encryption key:on
ESSID:"BML"
Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 6 Mb/s
9 Mb/s; 12 Mb/s; 18 Mb/s
Bit Rates:24 Mb/s; 36 Mb/s; 48 Mb/s; 54 Mb/s
Mode:Master
Extra:tsf=000000550026e8a5
Extra: Last beacon: 472ms ago
IE: Unknown: 0003424D4C
IE: Unknown: 010882848B960C121824
IE: Unknown: 030107
IE: Unknown: 2A0100
IE: Unknown: 32043048606C
IE: WPA Version 1
Group Cipher : TKIP
Pairwise Ciphers (1) : TKIP
Authentication Suites (1) : PSK
IE: Unknown: DD180050F2020101830003A4000027A4000042435E0062322F00
IE: Unknown: DD0900037F01010000FF7F
IE: Unknown: DD990050F204104A0001101044000102103B00010310470010000102030405060708090A0B0C0D0E0F1021000754502D4C494E4B10230009544C2D57523834314E10240003382E3010420003312E301054000800060050F204000110110019576972656C65737320526F7574657220544C2D57523834314E100800020086103C000101104900140024E26002000101600000020001600100020001
Cell 10 - Address: xx:xx:xx:xx:xx:xx
Channel:6
Frequency:2.437 GHz (Channel 6)
Quality=30/70 Signal level=-80 dBm
Encryption key:on
ESSID:"obi-kenobi"
Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 18 Mb/s
24 Mb/s; 36 Mb/s; 54 Mb/s
Bit Rates:6 Mb/s; 9 Mb/s; 12 Mb/s; 48 Mb/s
Mode:Master
Extra:tsf=000000bcef3f8edd
Extra: Last beacon: 460ms ago
IE: Unknown: 000A6F62692D6B656E6F6269
IE: Unknown: 010882848B962430486C
IE: Unknown: 030106
IE: Unknown: 2A0100
IE: Unknown: 2F0100
IE: IEEE 802.11i/WPA2 Version 1
Group Cipher : CCMP
Pairwise Ciphers (1) : CCMP
Authentication Suites (1) : PSK
IE: Unknown: 32040C121860
IE: Unknown: 2D1A6E181BFF00000000000000000000000000000000000000000000
IE: Unknown: 3D16060F0000000000000000000000000000000000000000
IE: Unknown: DD090010180200F02C0000
IE: Unknown: DD180050F2020101800003A4000027A4000042435E0062322F00
Cell 11 - Address: xx:xx:xx:xx:xx:xx
Channel:8
Frequency:2.447 GHz (Channel 8)
Quality=20/70 Signal level=-90 dBm
Encryption key:on
ESSID:"it hurts when IP"
Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 18 Mb/s
24 Mb/s; 36 Mb/s; 54 Mb/s
Bit Rates:6 Mb/s; 9 Mb/s; 12 Mb/s; 48 Mb/s
Mode:Master
Extra:tsf=00000065a6bfe8a0
Extra: Last beacon: 452ms ago
IE: Unknown: 00106974206875727473207768656E204950
IE: Unknown: 010882848B962430486C
IE: Unknown: 030108
IE: Unknown: 2A0100
IE: Unknown: 2F0100
IE: IEEE 802.11i/WPA2 Version 1
Group Cipher : CCMP
Pairwise Ciphers (1) : CCMP
Authentication Suites (1) : PSK
IE: Unknown: 32040C121860
IE: Unknown: 2D1AEC181BFFFF000000000000000000000000000000000000000000
IE: Unknown: 3D1608080400000000000000000000000000000000000000
IE: Unknown: DD090010180202F02C0000
IE: WPA Version 1
Group Cipher : CCMP
Pairwise Ciphers (1) : CCMP
Authentication Suites (1) : PSK
IE: Unknown: DD180050F2020101800003A4000027A4000042435E0062322F00
Cell 12 - Address: xx:xx:xx:xx:xx:xx
Channel:11
Frequency:2.462 GHz (Channel 11)
Quality=30/70 Signal level=-80 dBm
Encryption key:on
ESSID:"ggggg"
Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 18 Mb/s
24 Mb/s; 36 Mb/s; 54 Mb/s
Bit Rates:6 Mb/s; 9 Mb/s; 12 Mb/s; 48 Mb/s
Mode:Master
Extra:tsf=00000194f89997f8
Extra: Last beacon: 316ms ago
IE: Unknown: 00056767676767
IE: Unknown: 010882848B96A4B0C8EC
IE: Unknown: 03010B
IE: Unknown: 2A0104
IE: Unknown: 2F0104
IE: IEEE 802.11i/WPA2 Version 1
Group Cipher : TKIP
Pairwise Ciphers (2) : CCMP TKIP
Authentication Suites (1) : PSK
IE: Unknown: 32048C9298E0
IE: Unknown: 2D1AFC181BFFFF000000000000000000000000000000000000000000
IE: Unknown: 3D160B081500000000000000000000000000000000000000
IE: Unknown: DD090010180205F02C0000
IE: WPA Version 1
Group Cipher : TKIP
Pairwise Ciphers (2) : CCMP TKIP
Authentication Suites (1) : PSK
IE: Unknown: DD180050F2020101800003A4000027A4000042435E0062322F00
Cell 13 - Address: xx:xx:xx:xx:xx:xx
Channel:11
Frequency:2.462 GHz (Channel 11)
Quality=22/70 Signal level=-88 dBm
Encryption key:on
ESSID:"Socrates"
Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 18 Mb/s
24 Mb/s; 36 Mb/s; 54 Mb/s
Bit Rates:6 Mb/s; 9 Mb/s; 12 Mb/s; 48 Mb/s
Mode:Master
Extra:tsf=000001ad741051e8
Extra: Last beacon: 316ms ago
IE: Unknown: 0008536F637261746573
IE: Unknown: 010882848B962430486C
IE: Unknown: 03010B
IE: Unknown: 2A0104
IE: Unknown: 2F0104
IE: IEEE 802.11i/WPA2 Version 1
Group Cipher : CCMP
Pairwise Ciphers (1) : CCMP
Authentication Suites (1) : PSK
IE: Unknown: 32040C121860
IE: Unknown: DD7E0050F204104A0001101044000102103B00010310470010138140001DD211B29FFFC67E816B4BFB102100074C696E6B73797310230006526F7574657210240007575254353447321042000C4353563031484335333932321054000800060050F204000110110011576972656C6573732D4720526F75746572100800020088
IE: Unknown: DD090010180200F4000000
enp2s0 Interface doesn't support scanning.
tun0 Interface doesn't support scanning.
lo Interface doesn't support scanning.
br-eaa998a1048e Interface doesn't support scanning.
docker0 Interface doesn't support scanning.
MTU 大小和碎片的 Ping 输出
$% ping -s 1472 -c5 google.com
PING google.com (109.173.137.95) 1472(1500) bytes of data.
1480 bytes from cache.google.com (109.173.137.95): icmp_seq=1 ttl=58 time=4.04 ms
1480 bytes from cache.google.com (109.173.137.95): icmp_seq=2 ttl=58 time=4.15 ms
1480 bytes from cache.google.com (109.173.137.95): icmp_seq=3 ttl=58 time=3.98 ms
1480 bytes from cache.google.com (109.173.137.95): icmp_seq=4 ttl=58 time=3.74 ms
1480 bytes from cache.google.com (109.173.137.95): icmp_seq=5 ttl=58 time=6.16 ms