<SOLVED> Cannot connect to eduroam or u niversity secure wifi with Linux Mint 18.2 Cinnamon 64-bit (beta)

Questions about WIFI networks and devices
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caspardavidfriedrich
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<SOLVED> Cannot connect to eduroam or u niversity secure wifi with Linux Mint 18.2 Cinnamon 64-bit (beta)

Postby caspardavidfriedrich » Fri Jun 16, 2017 1:33 pm

Hi,
The wifi strength became very weak after I switched from windows 10 to linux mint 18.2 cinnamon 64-bit. Moreover, I could not even connect to several secure wifi in my university that i did easily before (when i click on it the circle just keep rotating with no pop-up windows). I could post results from terminals if anyone could tell me what commands I should enter for debugging. Thanks a lot!
Last edited by caspardavidfriedrich on Wed Jun 21, 2017 1:04 pm, edited 3 times in total.

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Pjotr
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Re: Very slow wifi with Linux Mint 18.2 Cinnamon 64-bit (beta)

Postby Pjotr » Fri Jun 16, 2017 6:02 pm

a. Please generate an overview of your system like this:

- Launch a terminal window (this is how to launch a terminal window);

- make the terminal window full screen, to avoid chopped lines;

- copy/paste this command into the terminal:

Code: Select all

inxi -Fxz

(if you type: the letter F is a capital letter)

- Press Enter.

- Copy/paste the output in your next message.

b. Do the same with the following three commands:

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rfkill list all

and:

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inxi -Nn

and:

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iwconfig
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caspardavidfriedrich
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Re: Very slow wifi with Linux Mint 18.2 Cinnamon 64-bit (beta)

Postby caspardavidfriedrich » Fri Jun 16, 2017 11:08 pm

Hi Pjotr,
Thank you for your reply. Results are:

Code: Select all

inxi -Fxz

System: Host: DowntonAbbey Kernel: 4.8.0-54-generic x86_64 (64 bit gcc: 5.4.0)
Desktop: Cinnamon 3.4.1 (Gtk 3.18.9-1ubuntu3.3) Distro: Linux Mint 18.2 Sonya
Machine: System: LENOVO (portable) product: 20AX000ECD v: ThinkPad S3-S431
Mobo: LENOVO model: 20AX000ECD v: Win8 STD PRC DPK TPG
Bios: LENOVO v: HFET37WW (1.14 ) date: 08/17/2016
CPU: Dual core Intel Core i7-3537U (-HT-MCP-) cache: 4096 KB
flags: (lm nx sse sse2 sse3 sse4_1 sse4_2 ssse3 vmx) bmips: 9977
clock speeds: max: 3100 MHz 1: 2447 MHz 2: 2716 MHz 3: 800 MHz 4: 2709 MHz
Graphics: Card-1: Intel 3rd Gen Core processor Graphics Controller bus-ID: 00:02.0
Card-2: Advanced Micro Devices [AMD/ATI] Sun XT [Radeon HD 8670A/8670M/8690M / R5 M330]
bus-ID: 01:00.0
Display Server: X.Org 1.18.4 drivers: ati,radeon,intel (unloaded: fbdev,vesa)
Resolution: 1600x900@60.00hz
GLX Renderer: Mesa DRI Intel Ivybridge Mobile GLX Version: 3.0 Mesa 12.0.6 Direct Rendering: Yes
Audio: Card Intel 7 Series/C210 Series Family High Definition Audio Controller
driver: snd_hda_intel bus-ID: 00:1b.0
Sound: Advanced Linux Sound Architecture v: k4.8.0-54-generic
Network: Card-1: Intel Centrino Wireless-N 2230 driver: iwlwifi bus-ID: 03:00.0
IF: wlp3s0 state: up mac: <filter>
Card-2: Realtek RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller
driver: r8169 v: 2.3LK-NAPI port: 2000 bus-ID: 04:00.0
IF: enp4s0 state: down mac: <filter>
Drives: HDD Total Size: 524.1GB (3.8% used) ID-1: /dev/sda model: HGST_HTS545050A7 size: 500.1GB
ID-2: /dev/sdb model: LITEONIT_LSS size: 24.0GB
Partition: ID-1: / size: 22G used: 7.8G (38%) fs: ext4 dev: /dev/sdb1
ID-2: /home size: 451G used: 3.5G (1%) fs: ext4 dev: /dev/sda2
ID-3: swap-1 size: 8.19GB used: 0.00GB (0%) fs: swap dev: /dev/sda5
RAID: No RAID devices: /proc/mdstat, md_mod kernel module present
Sensors: System Temperatures: cpu: 62.0C mobo: N/A gpu: N/A
Fan Speeds (in rpm): cpu: 0
Info: Processes: 309 Uptime: 7 min Memory: 818.5/7572.3MB Init: systemd runlevel: 5 Gcc sys: 5.4.0
Client: Shell (bash 4.3.481) inxi: 2.2.35

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rfkill list all

0: tpacpi_bluetooth_sw: Bluetooth
Soft blocked: no
Hard blocked: no
1: phy0: Wireless LAN
Soft blocked: no
Hard blocked: no
3: hci0: Bluetooth
Soft blocked: no
Hard blocked: no

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inxi -Nn

Network: Card-1: Intel Centrino Wireless-N 2230 driver: iwlwifi
IF: wlp3s0 state: up mac: 68:17:29:4d:c1:87
Card-2: Realtek RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller driver: r8169
IF: enp4s0 state: down mac: 20:89:84:d1:6f:ed

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iwconfig

enp4s0 no wireless extensions.

wlp3s0 IEEE 802.11 ESSID:"TP-LINK_ybai"
Mode:Managed Frequency:2.437 GHz Access Point: 38:83:45:87:5D:4C
Bit Rate=150 Mb/s Tx-Power=16 dBm
Retry short limit:7 RTS thr:off Fragment thr:off
Power Management:on
Link Quality=70/70 Signal level=-31 dBm
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:0 Invalid misc:62 Missed beacon:0

lo no wireless extensions.

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Re: Very slow wifi with Linux Mint 18.2 Cinnamon 64-bit (beta)

Postby Spearmint2 » Sat Jun 17, 2017 12:33 am

when you are ready to upgrade. Use it and works great in Linux Mint, plenty of long range.

https://www.amazon.com/WinnerEco-Wirele ... B01N6BN1SV
All things go better with Mint. Mint julep, mint jelly, mint gum, candy mints, pillow mints, peppermint, chocolate mints, spearmint,....

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Re: Very slow wifi with Linux Mint 18.2 Cinnamon 64-bit (beta)

Postby Pjotr » Sat Jun 17, 2017 4:50 am

Try these two things:

1. Update Manager - panel: View - Linux kernels

Install the latest kernel from the 4.10 series. Then reboot.

This will give you the latest drivers, because drivers are in the kernel.

2. Disable power management for the wifi chipset:
https://sites.google.com/site/easylinux ... eless-card
(item 2.1, right column)
Tip: 10 things to do after installing Linux Mint 18.2 Sonya
Keep your Linux Mint healthy: Avoid these 10 fatal mistakes
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caspardavidfriedrich
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Re: Very slow wifi with Linux Mint 18.2 Cinnamon 64-bit (beta)

Postby caspardavidfriedrich » Mon Jun 19, 2017 1:25 pm

Pjotr wrote:Try these two things:

1. Update Manager - panel: View - Linux kernels

Install the latest kernel from the 4.10 series. Then reboot.

This will give you the latest drivers, because drivers are in the kernel.

2. Disable power management for the wifi chipset:
https://sites.google.com/site/easylinux ... eless-card
(item 2.1, right column)

Hi Pjotr,
I tried both but the signal is still quite weak... is there any other thing worh trying? Thanks!
[EDIT] I can't see a configuration button besides the wifi networks either. It happens to both my university's secure wifi and eduroam.

caspardavidfriedrich
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Re: Very slow wifi with Linux Mint 18.2 Cinnamon 64-bit (beta)

Postby caspardavidfriedrich » Mon Jun 19, 2017 3:29 pm

Spearmint2 wrote:when you are ready to upgrade. Use it and works great in Linux Mint, plenty of long range.

https://www.amazon.com/WinnerEco-Wirele ... B01N6BN1SV

Thanks Spearmint2! Now I think the problem is not the wifi strength, because I could connect to wifi at my home but not the secure wifi at my university, nor eduroam.

caspardavidfriedrich
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Re: Very slow wifi with Linux Mint 18.2 Cinnamon 64-bit (beta)

Postby caspardavidfriedrich » Mon Jun 19, 2017 3:30 pm

Pjotr wrote:Try these two things:

1. Update Manager - panel: View - Linux kernels

Install the latest kernel from the 4.10 series. Then reboot.

This will give you the latest drivers, because drivers are in the kernel.

2. Disable power management for the wifi chipset:
https://sites.google.com/site/easylinux ... eless-card
(item 2.1, right column)

Hi Pjotr,
I tried both but the signal is still quite weak... is there any other thing worh trying? Thanks!
[EDIT] I can't see a configuration button besides the wifi networks either. It happens to both my university's secure wifi and eduroam. I could connect to wifi at my home though, so it might not be because of the wifi strength...

caspardavidfriedrich
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Re: Cannot connect to eduroam or university secure wifi with Linux Mint 18.2 Cinnamon 64-bit (beta)

Postby caspardavidfriedrich » Mon Jun 19, 2017 3:33 pm

I have edited the title of this post indicating it's a problem specific to eduroam and university wifi.

caspardavidfriedrich
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Re: <SOLVED> Cannot connect to eduroam or u niversity secure wifi with Linux Mint 18.2 Cinnamon 64-bit (beta)

Postby caspardavidfriedrich » Wed Jun 21, 2017 1:05 pm

I finally solved it by manually adding the wifi network in `network connections' with certain settings.

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Re: <SOLVED> Cannot connect to eduroam or u niversity secure wifi with Linux Mint 18.2 Cinnamon 64-bit (beta)

Postby Charles_Buchinsky » Tue Oct 10, 2017 5:43 am

A simple solution that worked for me in Mint 14 and Mint 18 is to install a different desktop-environment (e.g. MATE). The Network Manager seems to work as expected there, the connection is saved and works after you switch back to Cinnamon.
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Re: <SOLVED> Cannot connect to eduroam or u niversity secure wifi with Linux Mint 18.2 Cinnamon 64-bit (beta)

Postby BG405 » Thu Oct 12, 2017 11:27 am

Welcome to the Forums! One thing I'd better point out though, it's generally not recommended to install other desktop environments to an already set up, current Mint installation due to the integration. It usually leads to default applications from both DEs being installed and can lead to conflicts with configuration settings etc.. There are probably other potential issues as well. I'm aware that this wasn't always the case.
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