How to configure USB WIFI dongle

Installing and Using OpenWrt
1

Any ideas how to get my wifi dongle working? I have a Raspberry PI running the latest version of OpenWrt. I purchased a TP-Link AC600 Archer T2U Plus wifi dongle and plugged in the dongle. It displays "RTL871X: rtw_ndev_init(wlan0)" in dmesg but the wlan0 interface never appears in luci or ifconfig.

I installed the following drivers

kmod-rtlwifi-usb
kmod-mac80211
kmod-rtlwifi
kmod-usb-net-rtl8150
kmod-mii
kmod-usb-net
kmod-usb-net-cdc-ether
kmod-usb-net-rndis

lsusb displays

Bus 001 Device 003: ID 0424:ec00
Bus 001 Device 006: ID 0b95:1790 ASIX Elec. Corp. AX88179
Bus 001 Device 005: ID 2357:0120 Realtek  802.11ac WLAN Adapter
Bus 001 Device 002: ID 0424:9514
Bus 001 Device 001: ID 1d6b:0002 Linux 5.4.154 dwc_otg_hcd DWC OTG Controller

When I plug in the dongle, dmesg displays

[ 1316.434977] usb 1-1.5: new high-speed USB device number 5 using dwc_otg
[ 1316.544133] usb 1-1.5: New USB device found, idVendor=2357, idProduct=0120, bcdDevice= 2.00
[ 1316.557834] usb 1-1.5: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[ 1316.567891] usb 1-1.5: Product: 802.11ac WLAN Adapter
[ 1316.575681] usb 1-1.5: Manufacturer: Realtek
[ 1316.582587] usb 1-1.5: SerialNumber: 00e04c000001
[ 1316.714527] RTL871X: rtw_ndev_init(wlan0)

ifconfig displays (note wlan1 is the existing built in wifi)

br-lan    Link encap:Ethernet  HWaddr B8:27:EB:46:C4:A9
          inet addr:10.0.1.1  Bcast:10.0.1.255  Mask:255.255.255.0
          inet6 addr: fdd5:5310:59cc::1/60 Scope:Global
          inet6 addr: fe80::ba27:ebff:fe46:c4a9/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:47632 errors:0 dropped:0 overruns:0 frame:0
          TX packets:73716 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:7581136 (7.2 MiB)  TX bytes:71221962 (67.9 MiB)

eth0      Link encap:Ethernet  HWaddr B8:27:EB:46:C4:A9
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:47639 errors:0 dropped:0 overruns:0 frame:0
          TX packets:73721 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:7581740 (7.2 MiB)  TX bytes:71843864 (68.5 MiB)

lo        Link encap:Local Loopback
          inet addr:127.0.0.1  Mask:255.0.0.0
          inet6 addr: ::1/128 Scope:Host
          UP LOOPBACK RUNNING  MTU:65536  Metric:1
          RX packets:2036 errors:0 dropped:0 overruns:0 frame:0
          TX packets:2036 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:161642 (157.8 KiB)  TX bytes:161642 (157.8 KiB)

wlan1     Link encap:Ethernet  HWaddr B8:27:EB:13:91:FC
          inet addr:192.168.1.113  Bcast:192.168.1.255  Mask:255.255.255.0
          inet6 addr: fe80::ba27:ebff:fe13:91fc/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:63632 errors:0 dropped:0 overruns:0 frame:0
          TX packets:33652 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:63032811 (60.1 MiB)  TX bytes:7642690 (7.2 MiB)
2

if a network device is not presented you have driver issues...
(dmesg of successful usb wlan probe)

##################/usbstick 56° dmesg | grep -i rtl
[163075.167247] RTL871X: module init start
[163075.171114] RTL871X: rtl8812au v4.3.14_13455.20150212_BTCOEX20150128-51
[163075.177825] RTL871X: rtl8812au BT-Coex version = BTCOEX20150128-51
[163075.318214] RTL871X: rtw_ndev_init(wlan1)
[163075.323428] usbcore: registered new interface driver rtl8812au
[163075.329373] RTL871X: module init ret=0

if you have a network device and no luci, you have config issues / incompatibilites which usually provide enough info in the log to track down relevant infos...

3

My output looks similar to yours. You said config issues provide enough info in the log. Is there another log I should be looking in?

# dmesg | grep -i rtl
[    7.088402] usbcore: registered new interface driver rtl8150
[    7.363800] RTL871X: module init start
[    7.368832] RTL871X: rtl8812au v4.3.14_13455.20150212_BTCOEX20150128-51
[    7.376704] RTL871X: rtl8812au BT-Coex version = BTCOEX20150128-51
[    7.455117] RTL871X: rtw_ndev_init(wlan0)
[    7.461718] usbcore: registered new interface driver rtl8812au
[    7.469219] RTL871X: module init ret=0
[    7.479260] usbcore: registered new interface driver rtl8xxxu
[    7.772090] usbcore: registered new interface driver rtl8192cu
4

uci show wireless ?

5

Hi, I have the same problem getting the device working. Any help would be appreciated.

dmesg | grep -i rtl
[    7.143022] RTL871X: module init start
[    7.146783] RTL871X: rtl8812au v4.3.14_13455.20150212_BTCOEX20150128-51
[    7.153446] RTL871X: rtl8812au BT-Coex version = BTCOEX20150128-51
[    7.159724] usbcore: registered new interface driver rtl8812au
[    7.165555] RTL871X: module init ret=0
[  166.413074] RTL871X: rtw_ndev_init(wlan1)

config:

wireless.radio1=wifi-device

wireless.radio1.type='mac80211'

wireless.radio1.path='scb/fd500000.pcie/pci0000:00/0000:00:00.0/0000:01:00.0/usb1/1-1/1-1.1/1-1.1:1.0'

wireless.radio1.hwmode='11g'

wireless.radio1.htmode='HT20'

wireless.radio1.channel='auto'

wireless.radio1.country='00'
6

I have the same exact issue. Even tried compiling my own driver to the kernel... Dead

Bus 001 Device 003: ID 0bda:b812 Realtek 802.11ac NIC
ifconfig: SIOCGIFFLAGS: No such device

I purchased the antenna from Amazon and guess what...its going back.

Perhaps someone can tell me what 5ghz Antenna works on OpenWrt..please ???

Thanks

7
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