- I have a router, Laptop with Ubuntu (my laptop), Win10-laptop (brother's), iPhone. All devices are connecting to router's Wi-Fi.
- The normal speed is 16-20 mbps!
- When I was using Win 10 like my brother before, everything was good
- Now I am using Ubuntu and when Ubuntu laptop is turned off or disconnected from Wi-Fi, the speed on other devices is cutted down from 16-20 mpbs to 0.8 mbps. When Ubuntu is turned on again or connected to Wi-Fi, the speed is backing up to normal (16-20 mbps). If you turn off win10-laptop, there is no problem with speed.
I've tried to use other router, but it was the same. What's the problem? WHY Ubuntu-laptop is impacting on router's wifi speed?
Update
Update 2:
Ubuntu's Wi-Fi is on
Ubuntu's Wi-Fi is off
Update 3 for David:
########## wireless info START ##########
Report from: 19 May 2016 14:38 SAMT +0400
Booted last: 19 May 2016 13:09 SAMT +0400
Script from: 27 Sep 2015 00:34 UTC +0000
##### release ###########################
Distributor ID: Ubuntu
Description: Ubuntu 14.04.4 LTS
Release: 14.04
Codename: trusty
##### kernel ############################
Linux 3.13.0-86-generic #131-Ubuntu SMP Thu May 12 23:33:13 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux
Parameters: ro, quiet, splash, vt.handoff=7
##### desktop ###########################
Ubuntu
##### lspci #############################
03:00.0 Network controller [0280]: Qualcomm Atheros AR9285 Wireless Network Adapter (PCI-Express) [168c:002b] (rev 01)
Subsystem: AzureWave AW-NE785 / AW-NE785H 802.11bgn Wireless Full or Half-size Mini PCIe Card [1a3b:1089]
Kernel driver in use: ath9k
05:00.5 Ethernet controller [0200]: JMicron Technology Corp. JMC250 PCI Express Gigabit Ethernet Controller [197b:0250] (rev 03)
Subsystem: ASUSTeK Computer Inc. Device [1043:1905]
Kernel driver in use: jme
##### lsusb #############################
Bus 002 Device 003: ID 25a7:2433
Bus 002 Device 002: ID 8087:0020 Intel Corp. Integrated Rate Matching Hub
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 001 Device 003: ID 13d3:5130 IMC Networks Integrated Webcam
Bus 001 Device 002: ID 8087:0020 Intel Corp. Integrated Rate Matching Hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
##### PCMCIA card info ##################
##### rfkill ############################
0: asus-wwan: Wireless WAN
Soft blocked: no
Hard blocked: no
1: asus-wimax: WiMAX
Soft blocked: no
Hard blocked: no
2: phy0: Wireless LAN
Soft blocked: no
Hard blocked: no
##### lsmod #############################
ath9k 164164 0
ath9k_common 13551 1 ath9k
ath9k_hw 453856 2 ath9k_common,ath9k
ath 28698 3 ath9k_common,ath9k,ath9k_hw
mac80211 638915 1 ath9k
cfg80211 496328 3 ath,ath9k,mac80211
##### interfaces ########################
auto lo
iface lo inet loopback
##### ifconfig ##########################
eth0 Link encap:Ethernet HWaddr
UP BROADCAST MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)
Interrupt:50
wlan0 Link encap:Ethernet HWaddr
inet addr:192.168.0.65 Bcast:192.168.0.255 Mask:255.255.255.0
inet6 addr: fe80::/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:248779 errors:0 dropped:0 overruns:0 frame:0
TX packets:156344 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:346924202 (346.9 MB) TX bytes:14768748 (14.7 MB)
##### iwconfig ##########################
eth0 no wireless extensions.
lo no wireless extensions.
wlan0 IEEE 802.11bgn ESSID:"UM-225"
Mode:Managed Frequency:2.472 GHz Access Point:
Bit Rate=58.5 Mb/s Tx-Power=20 dBm
Retry long limit:7 RTS thr:off Fragment thr:off
Power Management:off
Link Quality=70/70 Signal level=-40 dBm
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:0 Invalid misc:57 Missed beacon:0
##### route #############################
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
0.0.0.0 192.168.0.1 0.0.0.0 UG 0 0 0 wlan0
192.168.0.0 0.0.0.0 255.255.255.0 U 9 0 0 wlan0
##### resolv.conf #######################
nameserver 127.0.1.1
search Dlink
##### network managers ##################
Installed:
NetworkManager
Running:
root 825 1 0 13:09 ? 00:00:03 NetworkManager
##### NetworkManager info ###############
NetworkManager Tool
State: connected (global)
- Device: eth0 -----------------------------------------------------------------
Type: Wired
Driver: jme
State: unavailable
Default: no
HW Address:
Capabilities:
Carrier Detect: yes
Wired Properties
Carrier: off
- Device: wlan0 [UM-225 1] ----------------------------------------------------
Type: 802.11 WiFi
Driver: ath9k
State: connected
Default: yes
HW Address:
Capabilities:
Speed: 58 Mb/s
Wireless Properties
WEP Encryption: yes
WPA Encryption: yes
WPA2 Encryption: yes
Wireless Access Points (* = current AP)
Explay: Infra, , Freq 2457 MHz, Rate 54 Mb/s, Strength 54 WPA
ASUS: Infra, , Freq 2437 MHz, Rate 54 Mb/s, Strength 62 WPA2
325: Infra, , Freq 2437 MHz, Rate 54 Mb/s, Strength 49 WPA WPA2
wtrende: Infra, , Freq 2412 MHz, Rate 54 Mb/s, Strength 49 WPA WPA2
Ultramarin_230: Infra, , Freq 2472 MHz, Rate 54 Mb/s, Strength 39 WPA2
Genius: Infra, , Freq 2417 MHz, Rate 54 Mb/s, Strength 45 WPA2
TP-LINK_327: Infra, , Freq 2412 MHz, Rate 54 Mb/s, Strength 39 WPA WPA2
TP-LINK222: Infra, , Freq 2437 MHz, Rate 54 Mb/s, Strength 62 WPA WPA2
nastya: Infra, , Freq 2472 MHz, Rate 54 Mb/s, Strength 75 WPA2
DIR-429: Infra, , Freq 2472 MHz, Rate 54 Mb/s, Strength 29 WPA2
TTK: Infra, , Freq 2437 MHz, Rate 54 Mb/s, Strength 29 WPA WPA2
TAM HET I/IHTEPHETA: Infra, , Freq 2462 MHz, Rate 54 Mb/s, Strength 39 WPA WPA2
115: Infra, , Freq 2462 MHz, Rate 54 Mb/s, Strength 42 WPA WPA2
TTK-427: Infra, , Freq 2457 MHz, Rate 54 Mb/s, Strength 42 WPA WPA2
TTK-211: Infra, , Freq 2462 MHz, Rate 54 Mb/s, Strength 25 WPA WPA2
ustu: Infra, , Freq 2412 MHz, Rate 54 Mb/s, Strength 32 WPA WPA2 Enterprise
TTK-423: Infra, , Freq 2412 MHz, Rate 54 Mb/s, Strength 47 WPA WPA2
TP-LINK-525: Infra, , Freq 2437 MHz, Rate 54 Mb/s, Strength 22 WPA WPA2
ustu_open: Infra, , Freq 2412 MHz, Rate 54 Mb/s, Strength 37
Vlaf777: Infra, , Freq 2437 MHz, Rate 54 Mb/s, Strength 27 WPA2
Phenomen: Infra, , Freq 2437 MHz, Rate 54 Mb/s, Strength 52 WPA2
Suck my dick per wi-fi: Infra, , Freq 2452 MHz, Rate 54 Mb/s, Strength 15 WPA2
TTK-207: Infra, , Freq 2462 MHz, Rate 54 Mb/s, Strength 32 WPA2
RTRouter-036281: Infra, , Freq 2417 MHz, Rate 54 Mb/s, Strength 34 WPA2
RTRouter-014050: Infra, , Freq 2457 MHz, Rate 54 Mb/s, Strength 24 WPA2
*UM-225: Infra, , Freq 2472 MHz, Rate 54 Mb/s, Strength 79 WPA2
Angry_Kot: Infra, , Freq 2437 MHz, Rate 54 Mb/s, Strength 30 WPA WPA2
Rostelecom231: Infra, , Freq 2462 MHz, Rate 54 Mb/s, Strength 19 WPA WPA2
ryxxx: Infra, , Freq 2437 MHz, Rate 54 Mb/s, Strength 14 WPA2
IPv4 Settings:
Address: 192.168.0.65
Prefix: 24 (255.255.255.0)
Gateway: 192.168.0.1
DNS: 192.168.0.1
##### NetworkManager.state ##############
[main]
NetworkingEnabled=true
WirelessEnabled=true
WWANEnabled=true
WimaxEnabled=true
##### NetworkManager.conf ###############
[main]
plugins=ifupdown,keyfile,ofono
dns=dnsmasq
no-auto-default=,
[ifupdown]
managed=false
##### NetworkManager profiles ###########
[[/etc/NetworkManager/system-connections/UM-225 1]] (600 root)
[connection] id=UM-225 1 | type=802-11-wireless
[802-11-wireless] ssid=UM-225 | mac-address=
[ipv4] method=auto
[ipv6] method=ignore
[[/etc/NetworkManager/system-connections/TSARYOV]] (600 root)
[connection] id=TSARYOV | type=802-11-wireless
[802-11-wireless] ssid=TSARYOV | mac-address=
[ipv4] method=auto
[ipv6] method=auto
[[/etc/NetworkManager/system-connections/Beeline_WiFi_FREE]] (600 root)
[connection] id=Beeline_WiFi_FREE | type=802-11-wireless
[802-11-wireless] ssid=Beeline_WiFi_FREE | mac-address=
[ipv6] method=auto
[ipv4] method=auto
[[/etc/NetworkManager/system-connections/Rostelecom231]] (600 root)
[connection] id=Rostelecom231 | type=802-11-wireless
[802-11-wireless] ssid=Rostelecom231 | mac-address=
[ipv4] method=auto
[ipv6] method=auto
[[/etc/NetworkManager/system-connections/DIR-429]] (600 root)
[connection] id=DIR-429 | type=802-11-wireless
[802-11-wireless] ssid=DIR-429 | mac-address=
[ipv4] method=auto
[ipv6] method=auto
[[/etc/NetworkManager/system-connections/UM-225]] (600 root)
[connection] id=UM-225 | type=802-11-wireless
[802-11-wireless] ssid=UM-225 | mac-address=
[ipv4] method=auto
[ipv6] method=auto
[[/etc/NetworkManager/system-connections/ustu_open]] (600 root)
[connection] id=ustu_open | type=802-11-wireless
[802-11-wireless] ssid=ustu_open | mac-address=
[ipv6] method=auto
[ipv4] method=auto
[[/etc/NetworkManager/system-connections/DIR-300]] (600 root)
[connection] id=DIR-300 | type=802-11-wireless
[802-11-wireless] ssid=DIR-300 | mac-address=
[ipv4] method=auto
[ipv6] method=auto
##### iw reg get ########################
Region: Europe/Samara (based on set time zone)
country 00:
(2402 - 2472 @ 40), (3, 20)
(2457 - 2482 @ 40), (3, 20), PASSIVE-SCAN, NO-IBSS
(2474 - 2494 @ 20), (3, 20), NO-OFDM, PASSIVE-SCAN, NO-IBSS
(5170 - 5250 @ 40), (3, 20), PASSIVE-SCAN, NO-IBSS
(5735 - 5835 @ 40), (3, 20), PASSIVE-SCAN, NO-IBSS
##### iwlist channels ###################
eth0 no frequency information.
lo no frequency information.
wlan0 13 channels in total; available frequencies :
Channel 01 : 2.412 GHz
Channel 02 : 2.417 GHz
Channel 03 : 2.422 GHz
Channel 04 : 2.427 GHz
Channel 05 : 2.432 GHz
Channel 06 : 2.437 GHz
Channel 07 : 2.442 GHz
Channel 08 : 2.447 GHz
Channel 09 : 2.452 GHz
Channel 10 : 2.457 GHz
Channel 11 : 2.462 GHz
Channel 12 : 2.467 GHz
Channel 13 : 2.472 GHz
Current Frequency:2.472 GHz (Channel 13)
##### iwlist scan #######################
eth0 Interface doesn't support scanning.
lo Interface doesn't support scanning.
Channel occupancy:
4 APs on Frequency:2.412 GHz (Channel 1)
3 APs on Frequency:2.437 GHz (Channel 6)
2 APs on Frequency:2.457 GHz (Channel 10)
2 APs on Frequency:2.462 GHz (Channel 11)
4 APs on Frequency:2.472 GHz (Channel 13)
wlan0 Scan completed :
Cell 01 - Address:
Channel:13
Frequency:2.472 GHz (Channel 13)
Quality=68/70 Signal level=-42 dBm
Encryption key:on
ESSID:"UM-225"
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=0000000d16efc86f
Extra: Last beacon: 48ms ago
IE: IEEE 802.11i/WPA2 Version 1
Group Cipher : CCMP
Pairwise Ciphers (1) : CCMP
Authentication Suites (1) : PSK
Cell 02 - Address: Update:
Router is DLink DIR-300
SOLUTION
Well, the problem, apparently, is to configure the wireless mode. It was installed B/G/N mixed. If you set the G mode, the problem does not occur.
B/G/N mixed - the speed is normal, but the problem remains.
B - the speed is always low.
G - the speed is always normal, there is no problem with Ubuntu.
N - the speed is normal, but the problem remains.
Just so that we are clear on this, some points:
- The Ubuntu laptop was previously running Windows
- The speed of the network goes up when you have Ubuntu in the mix. Take out the Ubuntu laptop and the speed goes down.
What I would check:
- The model of the router (update your question please).
- Whether there exists any address reservation. I have seen that in some routers, if there is a reservation for a card that advertises as, say, 11g, that is the maximum for all other devices (a.k.a mixed mode). In this case, what might be happening (just a guess) is that the router has knowledge of MAC x.x.x.x.x.x at 11g, but when it actually comes online, it reports as n, so the router raises the speed because now all active devices are at n speed. When it goes offline, the router falls back to its saved values.
- Look for a setting on the router that forces it to the maximum possible speed (G/N/whatever) and see if that helps.
- If nothing else works, then have you tried reconfiguring the router?
Again, it might be helpful if you posted the model of the router.
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