SOLVED - Wi-Fi adapter TP-Link TL-WN722N V2 not detected

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KIMW
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SOLVED - Wi-Fi adapter TP-Link TL-WN722N V2 not detected

Post by KIMW » Sat Jul 14, 2018 3:23 pm

I'd like to use a Wi-Fi adapter TP-Link TL-WN722N V2 but it's not detected by my laptop.
I downloaded the driver here: www.tp-link.com/us/download/TL-WN722N_V2.html#Driver but I am stuck. It seems that I cannot compile the driver to install it.

I tried this method: viewtopic.php?t=250469 and now although the Wi-Fi adapter is lit up and detect some Wi-Fi network it does not work properly, as I think it detects only TP-Link products near by me.

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lsusb; lspci -nnk | grep -iA2 net
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 005: ID 8087:0a2b Intel Corp. 
Bus 001 Device 004: ID 0a5c:5805 Broadcom Corp. 
Bus 001 Device 003: ID 0bda:57c3 Realtek Semiconductor Corp. 
Bus 001 Device 007: ID 2357:010c  
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
00:1f.6 Ethernet controller [0200]: Intel Corporation Ethernet Connection I219-LM [8086:156f] (rev 21)
        Subsystem: Dell Ethernet Connection I219-LM [1028:06dc]
        Kernel driver in use: e1000e
        Kernel modules: e1000e
01:00.0 Network controller [0280]: Intel Corporation Wireless 8260 [8086:24f3] (rev 3a)
        Subsystem: Intel Corporation Wireless 8260 [8086:0850]
        Kernel driver in use: iwlwifi
--
02:00.0 Network controller [0280]: Intel Corporation Device [8086:093c] (rev 3a)
        Subsystem: Intel Corporation Device [8086:2181]
03:00.0 Unassigned class [ff00]: Realtek Semiconductor Co., Ltd. RTS525A PCI Express Card Reader [10ec:525a] (rev 01)
What can I do?
Last edited by KIMW on Sat Jul 21, 2018 8:23 am, edited 1 time in total.
Distro: Linux Mint 18.1 KDE
Laptop: Dell Latitude-E7470. RAM 16GB. Dual core: Intel Core i7-6600U. Graphic Card: Intel Sky Lake..

JeremyB
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Re: Wi-Fi adapter TP-Link TL-WN722N V2 not detected

Post by JeremyB » Sat Jul 14, 2018 3:26 pm

See the wireless script in my signature and post results.
What is the issue with the internal Intel wifi?

KIMW
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Re: Wi-Fi adapter TP-Link TL-WN722N V2 not detected

Post by KIMW » Sat Jul 14, 2018 4:06 pm

Here you are:

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wget -N -t 5 -T 10 https://github.com/UbuntuForums/wireless-info/raw/master/wireless-info && chmod +x wireless-info && ./wireless-info
--2018-07-14 21:03:28--  https://github.com/UbuntuForums/wireless-info/raw/master/wireless-info
Resolving github.com (github.com)... 192.30.253.113, 192.30.253.112
Connecting to github.com (github.com)|192.30.253.113|:443... connected.
HTTP request sent, awaiting response... 302 Found
Location: https://raw.githubusercontent.com/UbuntuForums/wireless-info/master/wireless-info [following]
--2018-07-14 21:03:29--  https://raw.githubusercontent.com/UbuntuForums/wireless-info/master/wireless-info
Resolving raw.githubusercontent.com (raw.githubusercontent.com)... 151.101.16.133
Connecting to raw.githubusercontent.com (raw.githubusercontent.com)|151.101.16.133|:443... connected.
HTTP request sent, awaiting response... 200 OK
Length: 17021 (17K) [text/plain]
Saving to: ‘wireless-info’

wireless-info           100%[=============================>]  16.62K  --.-KB/s    in 0.03s 

Code: Select all

cat wireless-info.txt | nc termbin.com 9999
http://termbin.com/u83y
Distro: Linux Mint 18.1 KDE
Laptop: Dell Latitude-E7470. RAM 16GB. Dual core: Intel Core i7-6600U. Graphic Card: Intel Sky Lake..

JeremyB
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Re: Wi-Fi adapter TP-Link TL-WN722N V2 not detected

Post by JeremyB » Sat Jul 14, 2018 4:24 pm

Try

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sudo sed -i 's/3/2/' /etc/NetworkManager/conf.d/*

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sudo iwconfig wlp1s0 txpower 20
Reboot and see if you can connect with the internal. You may have to disable UFW

KIMW
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Re: Wi-Fi adapter TP-Link TL-WN722N V2 not detected

Post by KIMW » Sat Jul 14, 2018 4:35 pm

I just realized that my Wi-Fi adapter TP-Link TL-WN722N was disconnected from my laptop, so I ran your script again. Here you are:

Code: Select all

wget -N -t 5 -T 10 https://github.com/UbuntuForums/wireless-info/raw/master/wireless-info && chmod +x wireless-info && ./wireless-info
--2018-07-14 22:31:23--  https://github.com/UbuntuForums/wireless-info/raw/master/wireless-info
Resolving github.com (github.com)... 192.30.253.113, 192.30.253.112
Connecting to github.com (github.com)|192.30.253.113|:443... connected.
HTTP request sent, awaiting response... 302 Found
Location: https://raw.githubusercontent.com/UbuntuForums/wireless-info/master/wireless-info [following]
--2018-07-14 22:31:24--  https://raw.githubusercontent.com/UbuntuForums/wireless-info/master/wireless-info
Resolving raw.githubusercontent.com (raw.githubusercontent.com)... 151.101.16.133
Connecting to raw.githubusercontent.com (raw.githubusercontent.com)|151.101.16.133|:443... connected.
HTTP request sent, awaiting response... 200 OK
Length: 17021 (17K) [text/plain]
Saving to: ‘wireless-info’

wireless-info           100%[=============================>]  16.62K  --.-KB/s    in 0.1s

Code: Select all

cat wireless-info.txt | nc termbin.com 9999http://termbin.com/dz8z
Sorry about that.
Distro: Linux Mint 18.1 KDE
Laptop: Dell Latitude-E7470. RAM 16GB. Dual core: Intel Core i7-6600U. Graphic Card: Intel Sky Lake..

JeremyB
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Re: Wi-Fi adapter TP-Link TL-WN722N V2 not detected

Post by JeremyB » Sat Jul 14, 2018 5:10 pm

In those results, it is the internal Intel wireless that is connected, the USB wifi seems to have very weak reception, so I would just use the internal adapter. It seems that UFW is blocking some multicast traffic but it might not be critical

KIMW
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Re: Wi-Fi adapter TP-Link TL-WN722N V2 not detected

Post by KIMW » Sat Jul 14, 2018 5:48 pm

I Know, the internal Intel wireless is connected and it's working BUT I want the USB Wi-Fi adapter TP-Link TL-WN722N I just bought to work.
A I said in my first post, I think I have not managed to compile the driver properly in order to install it.
I disconnected the firewall but it did not change anything.
Distro: Linux Mint 18.1 KDE
Laptop: Dell Latitude-E7470. RAM 16GB. Dual core: Intel Core i7-6600U. Graphic Card: Intel Sky Lake..

KIMW
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Posts: 82
Joined: Sat Nov 12, 2016 1:43 pm

Re: Wi-Fi adapter TP-Link TL-WN722N V2 not detected

Post by KIMW » Sat Jul 14, 2018 6:01 pm

When I run:

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iwconfig
I have this:

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wlxc025e9184310  unassociated  ESSID:""  Nickname:"<WIFI@REALTEK>"
          Mode:Managed  Frequency=2.412 GHz  Access Point: Not-Associated   
          Sensitivity:0/0  
          Retry:off   RTS thr:off   Fragment thr:off
          Power Management:off
          Link Quality=0/100  Signal level=0 dBm  Noise level=0 dBm
          Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
          Tx excessive retries:0  Invalid misc:0   Missed beacon:0
I think there is something wrong. No?
Distro: Linux Mint 18.1 KDE
Laptop: Dell Latitude-E7470. RAM 16GB. Dual core: Intel Core i7-6600U. Graphic Card: Intel Sky Lake..

KIMW
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Posts: 82
Joined: Sat Nov 12, 2016 1:43 pm

Re: Wi-Fi adapter TP-Link TL-WN722N V2 not detected

Post by KIMW » Sat Jul 14, 2018 6:05 pm

When I run:

Code: Select all

iwconfig
I have this:

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wlxc025e9184310  unassociated  ESSID:""  Nickname:"<WIFI@REALTEK>"
          Mode:Managed  Frequency=2.412 GHz  Access Point: Not-Associated   
          Sensitivity:0/0  
          Retry:off   RTS thr:off   Fragment thr:off
          Power Management:off
          Link Quality=0/100  Signal level=0 dBm  Noise level=0 dBm
          Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
          Tx excessive retries:0  Invalid misc:0   Missed beacon:0
I think there is something wrong. No?
Distro: Linux Mint 18.1 KDE
Laptop: Dell Latitude-E7470. RAM 16GB. Dual core: Intel Core i7-6600U. Graphic Card: Intel Sky Lake..

JeremyB
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Posts: 9484
Joined: Fri Feb 21, 2014 8:17 am

Re: Wi-Fi adapter TP-Link TL-WN722N V2 not detected

Post by JeremyB » Sat Jul 14, 2018 6:06 pm

You could try

Code: Select all

echo "options 8188eu rtw_power_mgnt=0" | sudo tee /etc/modprobe.d/8188eu.conf
Reboot and see if it is any better

If nothing else you could

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cd rtl8188eu
sudo make uninstall
cd ~
rm -rf rtl8188eu
git clone https://github.com/jeremyb31/rtl8188eu.git
cd rtl8188eu
make
sudo make install
Reboot and see if it works better. I think Pjotr thought it was an improvement but most of the work I did a couple years ago and you are using kernel 4.4 so it might help

KIMW
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Re: Wi-Fi adapter TP-Link TL-WN722N V2 not detected

Post by KIMW » Sat Jul 21, 2018 7:57 am

JeremyB wrote:
Sat Jul 14, 2018 6:06 pm

Code: Select all

cd rtl8188eu
sudo make uninstall
cd ~
rm -rf rtl8188eu
git clone https://github.com/jeremyb31/rtl8188eu.git
cd rtl8188eu
make
sudo make install
Reboot and see if it works better. I think Pjotr thought it was an improvement but most of the work I did a couple years ago and you are using kernel 4.4 so it might help
Hi Jeremy,
Previously I had tried to install this one: https://github.com/lwfinger/rtl8188eu.git, which is the original one (I think), but the process was stuck somewhere in the middle. I followed your advice and this time it worked with yours. Thank you very much.
Distro: Linux Mint 18.1 KDE
Laptop: Dell Latitude-E7470. RAM 16GB. Dual core: Intel Core i7-6600U. Graphic Card: Intel Sky Lake..

KIMW
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Posts: 82
Joined: Sat Nov 12, 2016 1:43 pm

Re: Wi-Fi adapter TP-Link TL-WN722N V2 not detected

Post by KIMW » Sat Jul 21, 2018 8:02 am

It seems you are a network specialist so I have another question.
When I run: iwconfig I have also this:

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lo        no wireless extensions.

vmnet1    no wireless extensions.

ifb0      no wireless extensions.

vmnet8    no wireless extensions.
What is that? I don't think I ever used those.
Can I removed them?
Distro: Linux Mint 18.1 KDE
Laptop: Dell Latitude-E7470. RAM 16GB. Dual core: Intel Core i7-6600U. Graphic Card: Intel Sky Lake..

JeremyB
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Joined: Fri Feb 21, 2014 8:17 am

Re: Wi-Fi adapter TP-Link TL-WN722N V2 not detected

Post by JeremyB » Sat Jul 21, 2018 8:16 am

I don't think they can be removed, lo is needed

KIMW
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Re: Wi-Fi adapter TP-Link TL-WN722N V2 not detected

Post by KIMW » Sat Jul 21, 2018 8:22 am

What about:

Code: Select all

vmnet1    no wireless extensions.

ifb0      no wireless extensions.

vmnet8    no wireless extensions.
I think vmnet1 and vmnet8 belongs to VMWare... I don't know what is: ifb0
Distro: Linux Mint 18.1 KDE
Laptop: Dell Latitude-E7470. RAM 16GB. Dual core: Intel Core i7-6600U. Graphic Card: Intel Sky Lake..

JeremyB
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Posts: 9484
Joined: Fri Feb 21, 2014 8:17 am

Re: SOLVED - Wi-Fi adapter TP-Link TL-WN722N V2 not detected

Post by JeremyB » Sat Jul 21, 2018 8:36 am

I am not sure what ifb0 is as I haven't seen that before

KIMW
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Re: SOLVED - Wi-Fi adapter TP-Link TL-WN722N V2 not detected

Post by KIMW » Sat Jul 21, 2018 9:17 am

Is there a way to know what's ifb0 used for?

Otherwise do you know a different Network Manager I could use instead of the default one?
Distro: Linux Mint 18.1 KDE
Laptop: Dell Latitude-E7470. RAM 16GB. Dual core: Intel Core i7-6600U. Graphic Card: Intel Sky Lake..

JeremyB
Level 19
Level 19
Posts: 9484
Joined: Fri Feb 21, 2014 8:17 am

Re: SOLVED - Wi-Fi adapter TP-Link TL-WN722N V2 not detected

Post by JeremyB » Sat Jul 21, 2018 9:22 am

I don't think it is created in Network Manager, it is likely from the kernel if it shows in ifconfig or iwconfig

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