I have CentOS-7 installed on a bootable pendrive that I use in a windows 7 PC. In windows I can easily connect to the internet using my wifi router. But CentOS refuses to recognize my wifi connections. I copy here the results of some of my trials to connect

user@localhost ~]$ nmcli device status
DEVICE TYPE STATE CONNECTION
virbr0 bridge connected virbr0
enp3s0 ethernet cannot be reached --
lo loopback not handled --
virbr0-nic tun not handled --
[user@localhost ~]$ nmcli connection show
NAME UUID TYPE DEVICE
virbr0 da702c4f-a82c-4c84-aa53-652cb50e5e2b bridge virbr0
enp3s0 742f581e-9d39-4563-9f2e-3db79076b3b6 ethernet --
[user@localhost ~]$ nmcli dev wifi list
[user@localhost ~]$ nmcli --ask dev wifi connect
SSID or BSSID: 66226680
Error: no Wi-Fi device.
[user@localhost ~]$ nmcli dev wifi connect
Hiba: az SSID vagy BSSID hiányzik.
[user@localhost ~]$ nmcli dev wifi connect coriolis
Error: No Wi-Fi device
[user@localhost ~]$


I also copy here the hardware of my PC:

[user@localhost ~]$ lspci -nn
00:00.0 Host bridge [0600]: Intel Corporation 2nd Generation Core Processor Family DRAM Controller [8086:0100] (rev 09)
00:01.0 PCI bridge [0604]: Intel Corporation Xeon E3-1200/2nd Generation Core Processor Family PCI Express Root Port [8086:0101] (rev 09)
00:02.0 VGA compatible controller [0300]: Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller [8086:0102] (rev 09)
00:1a.0 USB controller [0c03]: Intel Corporation 6 Series/C200 Series Chipset Family USB Enhanced Host Controller #2 [8086:1c2d] (rev 04)
00:1b.0 Audio device [0403]: Intel Corporation 6 Series/C200 Series Chipset Family High Definition Audio Controller [8086:1c20] (rev 04)
00:1c.0 PCI bridge [0604]: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 1 [8086:1c10] (rev b4)
00:1c.5 PCI bridge [0604]: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 6 [8086:1c1a] (rev b4)
00:1d.0 USB controller [0c03]: Intel Corporation 6 Series/C200 Series Chipset Family USB Enhanced Host Controller #1 [8086:1c26] (rev 04)
00:1f.0 ISA bridge [0601]: Intel Corporation H61 Express Chipset LPC Controller [8086:1c5c] (rev 04)
00:1f.2 SATA controller [0106]: Intel Corporation 6 Series/C200 Series Chipset Family 6 port Desktop SATA AHCI Controller [8086:1c02] (rev 04)
00:1f.3 SMBus [0c05]: Intel Corporation 6 Series/C200 Series Chipset Family SMBus Controller [8086:1c22] (rev 04)
03:00.0 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller [10ec:8168] (rev 06)
[user@localhost ~]$

Can you help me with some advice?

Best László from Budapest

It would be much easier to read your output if you put it in CODE tags.
Now, I do not see the wireless adapter in lspci output.
Do you know what make and model it is?
You say it works in Windows, so perhaps get that information from there?

Thanks DC.901

I would have liked to send an attachment with my system describing software for windows, but there seems to be no option here for xms file attchments.


So I will send you an e-mail answer to your mail with the attachment (I hope this goes)..

CHeers László

That will not help (not with what software is on your Windows... Basically, you need to figure out if your wireless network adapter is compatible with CentOS?
So, get the manufacturer and model of the Wireless adapter.



I do not open attachments from unknown senders.
Instead expand all devices in device manager take a screen shot and post here; may be that will help?

In CentOS; open terminal and get output of:

I have found an ether net card from the above instructions in my CentOS-7 minimal installation. However from different commands I now know that I have a:

2-1.2 Obda: 8179 00 2.00 480 Mbit/s 500 mA 1lFS [Realtek 802.11n NIC 00E04C0001 wireless card.

Is this enough unformation on how to connect my minimal Centos installation to wifi?

Your wifi usb needs driver rtl8818eus. If you do a search for 'github rtl8818eus' you'll find a driver and instructions for install.

Thanks Petelq,

Do I need first to update my linux kernel for centOS-7 minimal? I seem to have something 1.3.....

I have downloaded the rtl8188eu driver but I still cannot connect to my wifi, why? What to do? New kernel for CentOS-7 maybe?