Wifi Adapter

jassa · Post by **jassa** » 25 Oct 2021, 12:35

Hi,

I know you have a wifi adatper listed in your shop but the link doesn't seem to work. I need to get a usb wifi adapter for a Core 3 and so far I've tried a Netgear AC1200 and a D-Link DWA-171 but both options don't work out of the box. Do you have any recommendations from common manufacturers that I can easily access?

nicolaiB · Post by **nicolaiB** » 25 Oct 2021, 12:45

Hi jassa,

any Linux 4.19 compatible USB wifi adapter (like the Edimax N150) should work with our hardware.

Nicolai

jassa · Post by **jassa** » 03 Nov 2021, 06:22

Hi Nic,

I purchased an Edimax N150. The bluetooth connects as soon as I plug it in but the wifi does not. I did some Googling and it looks like I may need to install a driver however I'm having issues installing it.

Do you know where I can find a compatible driver for this adapter? I'm using a RevPi Core 3.

nicolaiB · Post by **nicolaiB** » 04 Nov 2021, 09:29

Hi jassa,

the N150 should work without any additional drivers. You can check if the device has been detected by the RevPi correctly with the following commands:

List all known network devices: ip link show

Scan for wireless networks on device wlan0: sudo iwlist wlan0 scan

Nicolai

jassa · Post by **jassa** » 08 Nov 2021, 06:20

Unfortunately sudo iwlist wlan0 scan returns this error: Interface doesn't support scanning.

I can see the Edimax device with lsusb.

Any ideas?

nicolaiB · Post by **nicolaiB** » 08 Nov 2021, 10:02

Hi jassa,

which image version do you run (cat /etc/revpi/image-release)? What is the output of lsusb? Is the package firmware-realtek installed?

Here is the output of lsbusb of a working N150 in one of my test setups with the latest Buster image:

Code: Select all

Bus 001 Device 004: ID 7392:7811 Edimax Technology Co., Ltd EW-7811Un 802.11n Wireless Adapter [Realtek RTL8188CUS]

Nicolai

RiSpa · Post by **RiSpa** » 30 Mar 2022, 13:37

Hello,

I'm having the exact same issue as OP.

My system:
- RevPi Core 3+
- Edimax N 150 Wi-Fi 4 Nano USB Adapter

Answers to support questions:
- cat /etc/revpi/image-release:
2021-12-02-raspios-buster-armhf.img
- lsusb:
Bus 001 Device 005: ID 7392:b811 Edimax Technology Co., Ltd
Bus 001 Device 003: ID 0424:ec00 Standard Microsystems Corp. SMSC9512/9514 Fast Ethernet Adapter
Bus 001 Device 002: ID 0424:9514 Standard Microsystems Corp. SMC9514 Hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
- sudo apt-get install firmware-realtek:
Reading package lists... Done
Building dependency tree
Reading state information... Done
firmware-realtek is already the newest version (1:20190114-2+rpt4).
0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.

Additional information:
- no light on the Edimax adapter is on (or blinks)
- ifconfig: only shows eth0 and lo interfaces (no wlan0)

Any help is appreciated.

Thanks in advance,
RiSpa

nicolaiB · Post by **nicolaiB** » 30 Mar 2022, 14:16

Hi RiSpa,

please share your /var/log/kern.log

Nicolai

RiSpa · Post by **RiSpa** » 30 Mar 2022, 15:55

That file exists but is completely empty.