Wifi lenovo e450 not connecting

Question

I have found several people having similar issue, but not the solution

I am using Ubuntu 14.04 on Lenovo E450

I was able to connect on a wifi once, for a while, but after some time, whenever it tries to connect, message "Disconnected: you are now offline" appears. I am able to connect to some wifis (i can connect to a mobile hotspot i created) but for example not the wifi i have at home (which everyone is using and its working just fine)

I am kind of helpless as of what might be the problem, what should i try to solve this

Please add to your question the results of the wireless info script from here - the information should help solve your problem. — Wilf, Sep 22 '15 at 17:29
http://pastebin.com/7JN5sWUd this should be it (while not connected to any wifi and trying to connect to my home wifi) — ViRPo, Sep 22 '15 at 17:32

Pilot6 · Answer 1 · 2015-09-22T18:33:46.043

0

Run in terminal

sudo tee /etc/modprobe.d/iwlwifi-opt.conf <<< "options iwlwifi 11n_disable=1 power_save=0 swcrypto=1 bt_coex_active=0"

and reboot.

edited Sep 22 '15 at 18:33

answered Sep 22 '15 at 17:48

Pilot6

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this didnt do the trick :/ – ViRPo Sep 22 '15 at 18:21
@ViRPo Please try the new one. – Pilot6 Sep 22 '15 at 18:34
@Pilot6: You're losing it! You're showing up in the low quality review queue! (Voted "Looks OK") ;-) – Fabby Sep 22 '15 at 22:19

score 0 · Answer 2 · answered Sep 24 '15 at 21:55

Since Pilot6's answer didn't work gksudo gedit /etc/modprobe.d/iwlwifi.conf

Delete the line that was added options iwlwifi 11n_disable=1 power_save=0 swcrypto=1 bt_coex_active=0

And add options iwlwifi 11n_disable=8 Save, exit gedit, and reboot

I had an Intel card that wouldn't connect on a wireless network that was 11n only until I used this option to enable aggressive TX

Wifi lenovo e450 not connecting

2 Answers2