Very slow internet connection speed

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prokka

Very slow internet connection speed

Post by prokka »

Hi everyone,

For almost a year I din't have any issues with various versions of Linux Mint. But since last week I have suddenly ultra slow WiFi internet connection. I'm using Linux Mint 17 XFCE 64bit, on my Samsung 530U4E Ultrabook with Intel Wireless WiFi driver
- I checked several various WiFi networks,
- I changed kernel to 3.16.5,
- I tried wicd

But no luck... At the end I tried several Live distros (including Linux Mint 17 XFCE) and everything works great in them.

It is so slow that sometimes I can't even to "sudo apt-get update"

Any help is more than welcome.
Last edited by LockBot on Wed Dec 28, 2022 7:16 am, edited 1 time in total.
Reason: Topic automatically closed 6 months after creation. New replies are no longer allowed.
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prokka

Re: Very slow internet connection speed

Post by prokka »

And here is the MintWifi output

Code: Select all

sudo /usr/lib/linuxmint/mintWifi/mintWifi.py
-------------------------
* I. scanning WIFI PCI devices...
  -- Intel Corporation Centrino Advanced-N 6235 (rev 24)
      ==> PCI ID = 8086:088e (rev 24)
-------------------------
* II. querying ndiswrapper...
-------------------------
* III. querying iwconfig...
eth0      no wireless extensions.

wlan0     IEEE 802.11abgn  ESSID:"Telekom:WiFi"
          Mode:Managed  Frequency:2.447 GHz  Access Point: 00:3A:99:F7:4F:70
          Bit Rate=48 Mb/s   Tx-Power=15 dBm
          Retry short limit:7   RTS thr:off   Fragment thr:off
          Encryption key:off
          Power Management:off
          Link Quality=65/70  Signal level=-45 dBm
          Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
          Tx excessive retries:57  Invalid misc:81   Missed beacon:0

lo        no wireless extensions.

-------------------------
* IV. querying ifconfig...
eth0      Link encap:Ethernet  HWaddr 18:67:b0:25:e6:d1
          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)

lo        Link encap:Local Loopback
          inet addr:127.0.0.1  Mask:255.0.0.0
          inet6 addr: ::1/128 Scope:Host
          UP LOOPBACK RUNNING  MTU:65536  Metric:1
          RX packets:5009 errors:0 dropped:0 overruns:0 frame:0
          TX packets:5009 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:319301 (319.3 KB)  TX bytes:319301 (319.3 KB)

wlan0     Link encap:Ethernet  HWaddr c8:f7:33:8e:40:95
          inet addr:192.168.1.34  Bcast:192.168.1.255 Mask:255.255.255.0
          inet6 addr: fe80::caf7:33ff:fe8e:4095/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:11463 errors:0 dropped:1 overruns:0 frame:0
          TX packets:14937 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:4885268 (4.8 MB)  TX bytes:3141499 (3.1 MB)

-------------------------
* V. querying DHCP...
-------------------------
* VI. querying nslookup google.com...
Server:        127.0.1.1
Address:    127.0.1.1#53

Non-authoritative answer:
Name:    google.com
Address: 79.101.111.166
Name:    google.com
Address: 79.101.111.163
Name:    google.com
Address: 79.101.111.170
Name:    google.com
Address: 79.101.111.177
Name:    google.com
Address: 79.101.111.185
Name:    google.com
Address: 79.101.111.181
Name:    google.com
Address: 79.101.111.152
Name:    google.com
Address: 79.101.111.148
Name:    google.com
Address: 79.101.111.176
Name:    google.com
Address: 79.101.111.155
Name:    google.com
Address: 79.101.111.165
Name:    google.com
Address: 79.101.111.159
Name:    google.com
Address: 79.101.111.174
Name:    google.com
Address: 79.101.111.187
Name:    google.com
Address: 79.101.111.154
Name:    google.com
Address: 79.101.111.144
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JeremyB
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Posts: 13854
Joined: Fri Feb 21, 2014 8:17 am

Re: Very slow internet connection speed

Post by JeremyB »

These commands will download pastebin and a wifi script that hopefully will show what is wrong. If you press y and enter when the script asks about uploading to pastebin, you should be able to copy the URL it gives you with the mouse and paste it into a post

Code: Select all

sudo apt-get install pastebinit

Code: Select all

wget -N -t 5 -T 10 http://dl.dropbox.com/u/57264241/wireless_script && chmod +x wireless_script && ./wireless_script
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prokka

Re: Very slow internet connection speed

Post by prokka »

Thank you for your quick response JeremyB

Here is the link
http://pastebin.com/BypTwmX1
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JeremyB
Level 21
Level 21
Posts: 13854
Joined: Fri Feb 21, 2014 8:17 am

Re: Very slow internet connection speed

Post by JeremyB »

Can you boot into a 3.13 kernel and run the script again? This time you just need

Code: Select all

./wireless_script
If you don't get a grub menu at boot, hold the spacebar or shift key at boot, then scroll to previous linux mint
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prokka

Re: Very slow internet connection speed

Post by prokka »

Thank you again JeremyB

Here is the new link with kernel 3.13
http://pastebin.com/bXGs9AxU
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JeremyB
Level 21
Level 21
Posts: 13854
Joined: Fri Feb 21, 2014 8:17 am

Re: Very slow internet connection speed

Post by JeremyB »

prokka wrote:Thank you again JeremyB

Here is the new link with kernel 3.13
http://pastebin.com/bXGs9AxU
It looks like you have the same issue that has been reported as a bug. Since you know how to install a kernel, one of the developers has released a patched kernel that may fix it, you can find the files here http://people.canonical.com/~sforshee/l ... 410060628/

And one of the bug reports https://bugs.launchpad.net/ubuntu/+sour ... ug/1361809

This bug report is from someone using the same wifi chipset you are using https://bugs.launchpad.net/bugs/1328345
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prokka

Re: Very slow internet connection speed

Post by prokka »

JeremyB wrote:
It looks like you have the same issue that has been reported as a bug. Since you know how to install a kernel, one of the developers has released a patched kernel that may fix it, you can find the files here http://people.canonical.com/~sforshee/l ... 410060628/

And one of the bug reports https://bugs.launchpad.net/ubuntu/+sour ... ug/1361809

This bug report is from someone using the same wifi chipset you are using https://bugs.launchpad.net/bugs/1328345
Thank you again for helping me.

I tried both kernels but without any luck, I installed all four .deb files. Should I also somehow install patch directly? Is there any specific install order?
Here is the new link http://pastebin.com/M0Ep8dPR
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JeremyB
Level 21
Level 21
Posts: 13854
Joined: Fri Feb 21, 2014 8:17 am

Re: Re: Very slow internet connection speed

Post by JeremyB »

prokka wrote:
JeremyB wrote:
It looks like you have the same issue that has been reported as a bug. Since you know how to install a kernel, one of the developers has released a patched kernel that may fix it, you can find the files here http://people.canonical.com/~sforshee/l ... 410060628/

And one of the bug reports https://bugs.launchpad.net/ubuntu/+sour ... ug/1361809

This bug report is from someone using the same wifi chipset you are using https://bugs.launchpad.net/bugs/1328345
Thank you again for helping me.

I tried both kernels but without any luck, I installed all four .deb files. Should I also somehow install path directly? Is there any specific install order?
Here is the new link http://pastebin.com/M0Ep8dPR

You should have only installed the one all.deb and one linux-headers. .x86 and one linux-image x86 but it looks to be ok from the report
Try one more thing to see if it can work faster

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echo "options iwlwifi 11n_disable=8" | sudo tee -a /etc/modprobe.d/iwlwifi.conf
and reboot into this kernel, I think it was 3.13.0-37 but you can check with

Code: Select all

uname -a
The 11n_disable=8 actually enables a mode that should make it faster
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