No WIFI after upgrade to 15.2

English Network/Internet
1

I just finished an online update from 15.1 to 15.2. It seemed to go well. I did this entirely using my hotspot wifi connection. After the system rebooted the wifi connection information (including the wifi password) is still there, but there seems to be no way to connect to it. Not sure how to configure it. I am not sure if I should I delete that connection and try to establish a new one? Can anyone here offer me some advice. Much thanks!

2

What wifi?
USB than post:

lsusb

If inside PCI:

/sbin/lspci -nnk | grep -iA3 net

uname -a
3

Much thanks Sauerland. I was using a TP-Link AC1300 and the drivers must not be compatible with 15.2? I switched to an old wifi adapter I had laying around and immediately got a connection. The TP-Link is a much faster adapter so I need to get updated drivers so it is recognized? Do you still want the requested output? With non-working tp-link plugged in? or with existing working adapter?

4

Do you still want the requested output? With non-working tp-link plugged in?

Yes and yes.
Post:

lsusb

and

uname -a

I build drivers for Wlan-Sticks in my Repo.

5

As far as i can see TP-Link offers several AC1300 adapters

  • Archer T3U AC1300- MU-MIMO -USB-WLAN-Adapter
  • Archer T6E AC1300 High-Gain-Dualband-PCI-Express-WLAN-Adapter
  • Archer T4U AC1300-Dualband-USB-WLAN-Adapter
  • Archer T3U Plus AC1300-High-Gain-Dualband-USB-WLAN-Adapter

Which one is yours?

According to TP-Link only the Archer T4U AC1300-Dualband-USB-WLAN-Adapter is compatible with Linux and needs a special TP-Link Linux driver (Download für Archer T4U | TP-Link Deutschland) which needs to be compiled (https://static.tp-link.com/2018/201812/20181207/Installation%20Guide%20for%20Linux.pdf) and will only work with kernels 2.6.18~4.4. but openSUSE Leap 15.2 has kernel 5.3.18.

Regards

susejunky

6

Yes Susejunky . . . I have the T4U and I realize it is a kernal problem. Thank you.

7

[QUOTE=Sauerland;2995036]Yes and yes.

 linux-mtr6:/home/john # lsusb
Bus 005 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 009 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 008 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 004 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 007 Device 002: ID 1267:0214 Logic3 / SpectraVideo plc 
Bus 007 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 001 Device 002: ID 046d:0825 Logitech, Inc. Webcam C270
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 006 Device 002: ID 06a3:0160 Saitek PLC ST290 Pro
Bus 006 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 003 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 002 Device 003: ID 0bda:8187 Realtek Semiconductor Corp. RTL8187 Wireless Adapter
Bus 002 Device 002: ID 043d:011d Lexmark International, Inc. 
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
   

 linux-mtr6:/home/john # uname -a
Linux linux-mtr6 5.3.18-lp152.57-preempt #1 SMP PREEMPT Fri Dec 4 07:27:58 UTC 2020 (7be5551) x86_64 x86_64 x86_64 GNU/Linux
linux-mtr6:/home/john #
8

Thank you all for your help. I got the adapter to be recognized and installed! This forum is absolutely the best. So glad I decided to go with Opensuse!!! All problems seem to get resolved!!

9

@susjunky
The name of an hardware is not the important thing to search for the right drivers, its only the hardware inside.
These hardware has a unique ID and you will get it with lsusb or lspci.

Also as I wrote, I build some Wlan-drivers as rpm, easier to install.
And getting updates when an kernel-update is on the way.

@jdcart15
This is not an tplink:

Bus 002 Device 003: ID 0bda:8187 Realtek Semiconductor Corp. RTL8187 Wireless Adapter
10

Yes. That is my old adapter

11

with TPLink

linux-mtr6:/home/john # lsusb
Bus 005 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 009 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 008 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 007 Device 002: ID 1267:0214 Logic3 / SpectraVideo plc
Bus 007 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 001 Device 002: ID 046d:0825 Logitech, Inc. Webcam C270
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 006 Device 002: ID 06a3:0160 Saitek PLC ST290 Pro
Bus 006 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 003 Device 002: ID 2357:010d
Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
linux-mtr6:/home/john # uname -a
Linux linux-mtr6 5.3.18-lp152.57-preempt #1 SMP PREEMPT Fri Dec 4 07:27:58 UTC 2020 (7be5551) x86_64 x86_64 x86_64 GNU/Linux

12

Yes, i know.

You had already asked for lsusb and lspci so i did not want to ask for hwinfo --netcard (which as well would have delivered the information needed).

Regards

susejunky

13

**ID 2357:010d
**
https://deviwiki.com/wiki/TP-LINK_Archer_T4U

2357:010d: v2

v1 and v2

These devices have the rtl8812au chipset and you should be able to do as Pilot6 suggested:

sudo apt install rtl8812au-dkms

For openSUSE install needed packages: openSUSE Software .

But do you really need preempt kernel?
Do we need matching dkms driver for preempt kernel?

14

Well, that’s probably not true if the kernel cannot handle the chipset at all.

Regards

susejunky