Wifi limited to ~30Mbps on Mint 19

[hgraca]

Hi,

I am using Mint 19 for a month and now I noticed Im limited to aprox 30Mbps with the wireless network.
My colleagues are using the same network and they get up to 160Mbps, both on mac and ubuntu.

Here are my laptop specs:

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$ inxi -Fxz
System:    Host: herberto Kernel: 4.15.0-32-generic x86_64 bits: 64 gcc: 7.3.0
           Desktop: Cinnamon 3.8.8 (Gtk 3.22.30-1ubuntu1) Distro: Linux Mint 19 Tara
Machine:   Device: laptop System: Notebook product: W740SU serial: N/A
           Mobo: Notebook model: W740SU serial: N/A BIOS: American Megatrends v: 4.6.5 date: 04/21/2014
Battery    BAT0: charge: 46.3 Wh 100.0% condition: 46.3/53.3 Wh (87%) model: Notebook BAT status: Full
           hidpp__0: charge: N/A condition: NA/NA Wh
           model: Logitech Wireless Mouse M545/M546 status: Discharging
CPU:       Quad core Intel Core i7-4760HQ (-MT-MCP-) arch: Haswell rev.1 cache: 6144 KB
           flags: (lm nx sse sse2 sse3 sse4_1 sse4_2 ssse3 vmx) bmips: 16761
           clock speeds: max: 3300 MHz 1: 1483 MHz 2: 1113 MHz 3: 1169 MHz 4: 1173 MHz 5: 1178 MHz 6: 1265 MHz
           7: 1200 MHz 8: 1131 MHz
Graphics:  Card: Intel Crystal Well Integrated Graphics Controller bus-ID: 00:02.0
           Display Server: x11 (X.Org 1.19.6 ) drivers: modesetting (unloaded: fbdev,vesa)
           Resolution: 1920x1080@60.05hz, 2560x1440@59.95hz
           OpenGL: renderer: Mesa DRI Intel Haswell Mobile version: 4.5 Mesa 18.0.5 Direct Render: Yes
Audio:     Card-1 Intel 8 Series/C220 Series High Definition Audio Controller
           driver: snd_hda_intel bus-ID: 00:1b.0
           Card-2 Intel Crystal Well HD Audio Controller driver: snd_hda_intel bus-ID: 00:03.0
           Sound: Advanced Linux Sound Architecture v: k4.15.0-32-generic
Network:   Card-1: Intel Ethernet Connection I217-V driver: e1000e v: 3.2.6-k port: f080 bus-ID: 00:19.0
           IF: enp0s25 state: down mac: <filter>
           Card-2: Intel Wireless 7260 driver: iwlwifi bus-ID: 03:00.0
           IF: wlp3s0 state: up mac: <filter>
Drives:    HDD Total Size: 256.1GB (77.6% used)
           ID-1: /dev/sda model: Samsung_SSD_840 size: 256.1GB
Partition: ID-1: / size: 24G used: 9.2G (41%) fs: ext4 dev: /dev/sda1
           ID-2: /home size: 183G used: 160G (92%) fs: ext4 dev: /dev/sda7
           ID-3: /opt size: 12G used: 915M (9%) fs: ext4 dev: /dev/sda6
           ID-4: swap-1 size: 17.84GB used: 0.00GB (0%) fs: swap dev: /dev/sda5
RAID:      No RAID devices: /proc/mdstat, md_mod kernel module present
Sensors:   System Temperatures: cpu: 49.0C mobo: N/A
           Fan Speeds (in rpm): cpu: N/A
Info:      Processes: 306 Uptime: 7 min Memory: 5966.8/15960.3MB Init: systemd runlevel: 5 Gcc sys: 7.3.0
           Client: Shell (bash 4.4.191) inxi: 2.3.56

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$ iwconfig
wlp3s0    IEEE 802.11  ESSID:"WerkspotTech"  
          Mode:Managed  Frequency:2.412 GHz  Access Point: 00:F2:8B:D3:7F:E3   
          Bit Rate=144.4 Mb/s   Tx-Power=1 dBm   
          Retry short limit:7   RTS thr:off   Fragment thr:off
          Power Management:off
          Link Quality=62/70  Signal level=-48 dBm  
          Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
          Tx excessive retries:0  Invalid misc:219   Missed beacon:0

enp0s25   no wireless extensions.

lo        no wireless extensions.

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$ lshw -C network
  *-network                 
       description: Ethernet interface
       product: Ethernet Connection I217-V
       vendor: Intel Corporation
       physical id: 19
       bus info: pci@0000:00:19.0
       logical name: enp0s25
       version: 05
       serial: 80:fa:5b:0a:e0:1a
       capacity: 1Gbit/s
       width: 32 bits
       clock: 33MHz
       capabilities: pm msi bus_master cap_list ethernet physical tp 10bt 10bt-fd 100bt 100bt-fd 1000bt-fd autonegotiation
       configuration: autonegotiation=on broadcast=yes driver=e1000e driverversion=3.2.6-k firmware=0.12-3 latency=0 link=no multicast=yes port=twisted pair
       resources: irq:29 memory:f7e00000-f7e1ffff memory:f7e3d000-f7e3dfff ioport:f080(size=32)
  *-network
       description: Wireless interface
       product: Wireless 7260
       vendor: Intel Corporation
       physical id: 0
       bus info: pci@0000:03:00.0
       logical name: wlp3s0
       version: c3
       serial: f8:16:54:dd:e3:c5
       width: 64 bits
       clock: 33MHz
       capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless
       configuration: broadcast=yes driver=iwlwifi driverversion=4.15.0-32-generic firmware=17.948900127.0 ip=10.10.40.133 latency=0 link=yes multicast=yes wireless=IEEE 802.11
       resources: irq:32 memory:f7c00000-f7c01fff

Any ideas about what might be wrong?

Tkx in advance.

[sarge816]

$ iwconfig
wlp3s0 IEEE 802.11 ESSID:"WerkspotTech"
Mode:Managed Frequency:2.412 GHz Access Point: 00:F2:8B:D3:7F:E3
Bit Rate=144.4 Mb/s Tx-Power=1 dBm

I see you are connected to the 2.4GHz network which doesn't look to be able to support the throughput you say your colleagues are enjoying. Is there also a 5GHz access point offered?

[hgraca]

I was checking and yes, there is a 5G link available, with the same name as the 2.4G.
But my system can not detect it:

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$ iwlist wlp3s0 scanning | grep -C3 WerkspotTech
                    Frequency:2.412 GHz (Channel 1)
                    Quality=64/70  Signal level=-46 dBm  
                    Encryption key:on
                    ESSID:"WerkspotTech"
                    Bit Rates:12 Mb/s; 18 Mb/s; 24 Mb/s; 36 Mb/s; 48 Mb/s
                              54 Mb/s
                    Mode:Master

[hgraca]

Buh!!

After researching abit, it seems my wireless adapter (Intel Wireless-N 7260) doesn't support 5G

https://communities.intel.com/message/503231#503231

Thank you for your feedback anyway.

[JeremyB]

Let's see if we can get some more speed by unloading the module and load it with a parameter

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sudo modprobe -r iwlwifi
sudo modprobe iwlwifi 11n_disable=8

See if that helps as it enables aggressive TX and some have reported a speed increase of over 60%

[phd21]

Hi hgraca,

I just read your post and the good replies to it. Here are my thoughts on this as well.

After trying "JeremyB" 's suggestion, if you want more speed, you can always get a small USB WiFi adapter that is plug-in-play with Linux and supports both 2.4ghz and 5 ghz networks ("dual band", n/ac) and the higher speed throughput. These are not expensive and are available on Amazon.com ("Panda", etc...), Ebay, maybe even locally at business supply stores, etc...

To "JeremyB", does that work with all WiFi adapters or just the OP's WiFi adapter?

[JeremyB]

Hi hgraca,

I just read your post and the good replies to it. Here are my thoughts on this as well.

After trying "JeremyB" 's suggestion, if you want more speed, you can always get a small USB WiFi adapter that is plug-in-play with Linux and supports both 2.4ghz and 5 ghz networks ("dual band", n/ac) and the higher speed throughput. These are not expensive and are available on Amazon.com ("Panda", etc...), Ebay, maybe even locally at business supply stores, etc...

To "JeremyB", does that work with all WiFi adapters or just the OP's WiFi adapter?

Just Intel wifi that use the iwlwifi kernel module, old bug report https://bugs.launchpad.net/ubuntu/+sour ... ug/1319630
With any wifi device in Mint 18 or 19, this command might help as it prevents Network Manager from enabling wifi power save sudo sed -i 's/3/2/' /etc/NetworkManager/conf.d/*

[hgraca]

Tkx for your replies guys.

I tried @JeremyB suggestion but it had no effect.

I decided to just replace my Intel® Wireless-N 7260 (only 2.4G wifi) for a more recent Intel® Dual Band Wireless-AC 7260, which will give me access to 5G wifi.

Its already discontinued but the form factor is the same (PciE Half Mini Card) and its the same base model so it should work fine in my laptop.

Again, thank you for your prompt replies.

[AZgl1800]

Excuse the interruption, but this is a sore subject with me...

it seems that the MediaTek MT7630e adapter is not supported?


john@john-TP500LA ~ $ sudo modprobe -r iwlwifi
[sudo] password for john:
rmmod: ERROR: missing module name.
modprobe: FATAL: Error runnin

[JeremyB]

The MT7630e does not use iwlwifi module so it would not be loaded and since you don't have an Intel wifi the parameter will do nothing