SLow wifi since updating to 18.04

up vote
9
down vote

favorite

Hi everyone

I've had some weird internet since upgrading.

first of all my wifi USB dongle stopped working so i thought it was broken, i replaced it and was getting speeds of under 1 mbps.

Since then I have had very poor download speeds, and surfing has been a bit hit and miss with some sites loading instantly, and others crawling. everything was fine using the same hardware on 16.04

what can i do to speed things up?

thanks

asked Apr 29 at 14:38

Syteanric

4612

Hi Syteanric, can you add some more information to your question? 1) The output of dmesg | grep Linux 2) The output of lshw -C network 3) The output of lsusb
– Hee Jin
Apr 29 at 16:31

add a comment |

up vote
9
down vote

favorite

Hi everyone

I've had some weird internet since upgrading.

first of all my wifi USB dongle stopped working so i thought it was broken, i replaced it and was getting speeds of under 1 mbps.

Since then I have had very poor download speeds, and surfing has been a bit hit and miss with some sites loading instantly, and others crawling. everything was fine using the same hardware on 16.04

what can i do to speed things up?

thanks

asked Apr 29 at 14:38

Syteanric

4612

Hi Syteanric, can you add some more information to your question? 1) The output of dmesg | grep Linux 2) The output of lshw -C network 3) The output of lsusb
– Hee Jin
Apr 29 at 16:31

add a comment |

up vote
9
down vote

favorite

Hi everyone

I've had some weird internet since upgrading.

first of all my wifi USB dongle stopped working so i thought it was broken, i replaced it and was getting speeds of under 1 mbps.

Since then I have had very poor download speeds, and surfing has been a bit hit and miss with some sites loading instantly, and others crawling. everything was fine using the same hardware on 16.04

what can i do to speed things up?

thanks

asked Apr 29 at 14:38

Syteanric

4612

Hi everyone

I've had some weird internet since upgrading.

first of all my wifi USB dongle stopped working so i thought it was broken, i replaced it and was getting speeds of under 1 mbps.

Since then I have had very poor download speeds, and surfing has been a bit hit and miss with some sites loading instantly, and others crawling. everything was fine using the same hardware on 16.04

what can i do to speed things up?

thanks

networking wireless internet

asked Apr 29 at 14:38

Syteanric

4612

asked Apr 29 at 14:38

Syteanric

4612

asked Apr 29 at 14:38

Syteanric

4612

asked Apr 29 at 14:38

Syteanric

4612

asked Apr 29 at 14:38

Syteanric

4612

Hi Syteanric, can you add some more information to your question? 1) The output of dmesg | grep Linux 2) The output of lshw -C network 3) The output of lsusb
– Hee Jin
Apr 29 at 16:31

add a comment |

Hi Syteanric, can you add some more information to your question? 1) The output of dmesg | grep Linux 2) The output of lshw -C network 3) The output of lsusb
– Hee Jin
Apr 29 at 16:31

Hi Syteanric, can you add some more information to your question? 1) The output of dmesg | grep Linux 2) The output of lshw -C network 3) The output of lsusb
– Hee Jin
Apr 29 at 16:31

add a comment |

2 Answers
2

active

oldest

votes

up vote
8
down vote

I just fixed this on ubuntu 18.04 - turns out there is some kind of issue with 802.11n and iwlwifi Intel chips. The solution is to turn it off.

Check if it works first with:

sudo modprobe -r iwlwifi



sudo modprobe iwlwifi 11n_disable=1

Make it permanent with this command:

echo "options iwlwifi 11n_disable=1" | sudo tee /etc/modprobe.d/iwlwifi.conf

I did this and my wifi speeds instantly went back to normal.

answered May 18 at 2:45

Ben Warren

812

Worked for me, thanks!
– eskararriba
Jun 22 at 8:12

This disables support for n-band wireless connections, correct? That should be noted in this answer if so. wiki.debian.org/iwlwifi
– ckeeney
Aug 21 at 17:04

add a comment |

up vote
0
down vote

I just fixed this on ubuntu 18.04 - turns out there is some kind of issue with 802.11n and iwlwifi Intel chips.

That's for sure 8-) ! With a Advanced-N 6200 in a computer I just picked up, I was getting freezes (no LEDs so I don't know if the kernel paniced..) within a minute or two once I started rsync'ing some files over. 11n_disable=1 solved this for me.

Update: Actually I had freezes with 11n_disable=1 also; I popped my case open and found the card was not fully seated!

edited Oct 18 at 19:36

answered Oct 16 at 4:24

user153822

762

add a comment |

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2 Answers
2

active

oldest

votes

2 Answers
2

active

oldest

votes

up vote
8
down vote

I just fixed this on ubuntu 18.04 - turns out there is some kind of issue with 802.11n and iwlwifi Intel chips. The solution is to turn it off.

Check if it works first with:

sudo modprobe -r iwlwifi



sudo modprobe iwlwifi 11n_disable=1

Make it permanent with this command:

echo "options iwlwifi 11n_disable=1" | sudo tee /etc/modprobe.d/iwlwifi.conf

I did this and my wifi speeds instantly went back to normal.

answered May 18 at 2:45

Ben Warren

812

Worked for me, thanks!
– eskararriba
Jun 22 at 8:12

This disables support for n-band wireless connections, correct? That should be noted in this answer if so. wiki.debian.org/iwlwifi
– ckeeney
Aug 21 at 17:04

add a comment |

up vote
8
down vote

I just fixed this on ubuntu 18.04 - turns out there is some kind of issue with 802.11n and iwlwifi Intel chips. The solution is to turn it off.

Check if it works first with:

sudo modprobe -r iwlwifi



sudo modprobe iwlwifi 11n_disable=1

Make it permanent with this command:

echo "options iwlwifi 11n_disable=1" | sudo tee /etc/modprobe.d/iwlwifi.conf

I did this and my wifi speeds instantly went back to normal.

answered May 18 at 2:45

Ben Warren

812

Worked for me, thanks!
– eskararriba
Jun 22 at 8:12

This disables support for n-band wireless connections, correct? That should be noted in this answer if so. wiki.debian.org/iwlwifi
– ckeeney
Aug 21 at 17:04

add a comment |

up vote
8
down vote

I just fixed this on ubuntu 18.04 - turns out there is some kind of issue with 802.11n and iwlwifi Intel chips. The solution is to turn it off.

Check if it works first with:

sudo modprobe -r iwlwifi



sudo modprobe iwlwifi 11n_disable=1

Make it permanent with this command:

echo "options iwlwifi 11n_disable=1" | sudo tee /etc/modprobe.d/iwlwifi.conf

I did this and my wifi speeds instantly went back to normal.

answered May 18 at 2:45

Ben Warren

812

I just fixed this on ubuntu 18.04 - turns out there is some kind of issue with 802.11n and iwlwifi Intel chips. The solution is to turn it off.

Check if it works first with:

sudo modprobe -r iwlwifi



sudo modprobe iwlwifi 11n_disable=1

Make it permanent with this command:

echo "options iwlwifi 11n_disable=1" | sudo tee /etc/modprobe.d/iwlwifi.conf

I did this and my wifi speeds instantly went back to normal.

answered May 18 at 2:45

Ben Warren

812

answered May 18 at 2:45

Ben Warren

812

answered May 18 at 2:45

Ben Warren

812

answered May 18 at 2:45

Ben Warren

812

Worked for me, thanks!
– eskararriba
Jun 22 at 8:12

This disables support for n-band wireless connections, correct? That should be noted in this answer if so. wiki.debian.org/iwlwifi
– ckeeney
Aug 21 at 17:04

add a comment |

Worked for me, thanks!
– eskararriba
Jun 22 at 8:12

This disables support for n-band wireless connections, correct? That should be noted in this answer if so. wiki.debian.org/iwlwifi
– ckeeney
Aug 21 at 17:04

Worked for me, thanks!
– eskararriba
Jun 22 at 8:12

This disables support for n-band wireless connections, correct? That should be noted in this answer if so. wiki.debian.org/iwlwifi
– ckeeney
Aug 21 at 17:04

add a comment |

up vote
0
down vote

I just fixed this on ubuntu 18.04 - turns out there is some kind of issue with 802.11n and iwlwifi Intel chips.

Update: Actually I had freezes with 11n_disable=1 also; I popped my case open and found the card was not fully seated!

edited Oct 18 at 19:36

answered Oct 16 at 4:24

user153822

762

add a comment |

up vote
0
down vote

I just fixed this on ubuntu 18.04 - turns out there is some kind of issue with 802.11n and iwlwifi Intel chips.

Update: Actually I had freezes with 11n_disable=1 also; I popped my case open and found the card was not fully seated!

edited Oct 18 at 19:36

answered Oct 16 at 4:24

user153822

762

add a comment |

up vote
0
down vote

I just fixed this on ubuntu 18.04 - turns out there is some kind of issue with 802.11n and iwlwifi Intel chips.

Update: Actually I had freezes with 11n_disable=1 also; I popped my case open and found the card was not fully seated!

edited Oct 18 at 19:36

answered Oct 16 at 4:24

user153822

762

I just fixed this on ubuntu 18.04 - turns out there is some kind of issue with 802.11n and iwlwifi Intel chips.

Update: Actually I had freezes with 11n_disable=1 also; I popped my case open and found the card was not fully seated!

edited Oct 18 at 19:36

answered Oct 16 at 4:24

user153822

762

edited Oct 18 at 19:36

answered Oct 16 at 4:24

user153822

762

answered Oct 16 at 4:24

user153822

762

answered Oct 16 at 4:24

user153822

762

add a comment |

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