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TP-WN8200ND v2 USB wireless adapter not showing up
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odedawan
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Joined: 24 Jul 2020
Posts: 1

PostPosted: Fri Jul 24, 2020 1:30 pm    Post subject: TP-WN8200ND v2 USB wireless adapter not showing up Reply with quote

Hi,

I bought 2 different USB wireless adapters and I failed to make either of them work. This post focuses on the second (TP-WN8200ND v2 - cateee.net entry), I'm only mentioning the first so you don't dismiss the possibility of a more basic issue than specific drivers.

Some outputs:

Code:
$ dmesg # after connecting the device
...
[ 1050.914762] usb 2-1.1: USB disconnect, device number 3
[ 1053.390255] usb 2-1.1: new high-speed USB device number 8 using ehci-pci
[ 1053.469332] usb 2-1.1: New USB device found, idVendor=2357, idProduct=0126, bcdDevice= 2.00
[ 1053.469335] usb 2-1.1: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[ 1053.469337] usb 2-1.1: Product: 802.11n NIC
[ 1053.469338] usb 2-1.1: Manufacturer: Realtek
[ 1053.469340] usb 2-1.1: SerialNumber: D037452880CD

$ lsusb
...
Bus 002 Device 003: ID 2357:0126 TP-Link
...

$ ifconfig -a
enp3s0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet 10.0.0.14  netmask 255.255.255.0  broadcast 10.0.0.255
        inet6 <truncated>  prefixlen 64  scopeid 0x20<link>
        ether <truncated> txqueuelen 1000  (Ethernet)
        RX packets 23052  bytes 11859397 (11.3 MiB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 12210  bytes 1836822 (1.7 MiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

lo: flags=73<UP,LOOPBACK,RUNNING>  mtu 65536
        inet 127.0.0.1  netmask 255.0.0.0
        inet6 ::1  prefixlen 128  scopeid 0x10<host>
        loop  txqueuelen 1000  (Local Loopback)
        RX packets 0  bytes 0 (0.0 B)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 0  bytes 0 (0.0 B)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

sit0: flags=128<NOARP>  mtu 1480
        sit  txqueuelen 1000  (IPv6-in-IPv4)
        RX packets 0  bytes 0 (0.0 B)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 0  bytes 0 (0.0 B)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0


Things I tried:

1. Compiled both RTL8192CU and RTL8XXXU (with RTL8XXXU_UNTESTED) as modules and built-in, separately and together (together only when as modules). Neither auto-loaded when the device was connected, and modprobing them did nothing but show up in lsmod and dmesg with no errors:
Code:
$ modprobe rtl8192cu
$ dmesg
...
usbcore: registered new interface driver rtl8192cu
$ lsmod
Module                  Size  Used by
rtl8192cu              94208  0
rtl_usb                24576  1 rtl8192cu
rtl8192c_common        69632  1 rtl8192cu
rtlwifi               126976  3 rtl8192c_common,rtl_usb,rtl8192cu
mac80211              798720  3 rtl_usb,rtl8192cu,rtlwifi
cfg80211              782336  2 rtlwifi,mac80211
nvidia_modeset       1142784  12
nvidia              19345408  680 nvidia_modeset
x86_pkg_temp_thermal    20480  0
r8169                  98304  0
realtek                20480  1

and
Code:
$ modprobe rtl8xxxu
$ dmesg
...
usbcore: registered new interface driver rtl8xxxu
$ lsmod
Module                  Size  Used by
rtl8xxxu              122880  0
mac80211              798720  1 rtl8xxxu
cfg80211              782336  2 mac80211,rtl8xxxu
nvidia_modeset       1142784  12
nvidia              19345408  680 nvidia_modeset
x86_pkg_temp_thermal    20480  0
r8169                  98304  0
realtek                20480  1

2. Compiled manually https://github.com/pvaret/rtl8192cu-fixes and https://www.tp-link.com/il/support/download/tl-wn8200nd/v2/. Both failed to build, according to some search it seems to have stopped working with some kernel version.
3. On Windows 10 the device worked perfectly, not needing to install anything.
4. On an old Ubuntu Live CD and a new Fedora Live CD, both showing the same results (modules not auto-loading, wlan not showing up in ifconfig even after modprobing either module).
5. Different USB slots.

Any ideas?
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