RTL8188 Ativação (wlan1 / wireless): associação demorou muito, falha na ativação

Question

Eu tenho:

• Barramento 003 Dispositivo 008: ID 0b05: 1786 ASUSTek Computer, Inc. Adaptador de rede 802.11n USB-N10 [Realtek RTL8188SU] (de lsusb) - Asus USB-N10
• 03: 00.0 Controlador de rede: Qualcomm Atheros AR9285 Adaptador de rede sem fio (PCI-Express) (rev 01) (de lspci)
• telefone (cliente e host wifi)
• tp-link tl-wr740n
• e agora Mikrotik rb941-2nd-tc
• Linux kernel x64 3.13.0-32-genérico (Ubuntu 14.04)

Anteriormente tudo tinha funcionado, mas agora substituí o tp-link pelo mikrotik e tudo continuava funcionando exceto o adaptador USB Asus.

Ainda se conecta bem a todos os ap (tp-link ou celular) exceto o mikrotik.

Todos os outros clientes se conectam bem a todos os ap (mikrotik, tp-link, phone).

Parte do syslog durante a conexão da asus usb-n10 para o mikrotik:

Nov 25 19:55:36 mariya-N53SV NetworkManager[1213]: <info> Activation (wlan1/wireless): connection 'nm-test' requires no security.  No secrets needed.
Nov 25 19:55:36 mariya-N53SV NetworkManager[1213]: <info> Config: added 'ssid' value 'nm-test'
Nov 25 19:55:36 mariya-N53SV NetworkManager[1213]: <info> Config: added 'scan_ssid' value '1'
Nov 25 19:55:36 mariya-N53SV NetworkManager[1213]: <info> Config: added 'key_mgmt' value 'NONE'
Nov 25 19:55:36 mariya-N53SV NetworkManager[1213]: <info> Activation (wlan1) Stage 2 of 5 (Device Configure) complete.
Nov 25 19:55:36 mariya-N53SV NetworkManager[1213]: <info> Config: set interface ap_scan to 1
Nov 25 19:55:36 mariya-N53SV NetworkManager[1213]: <info> (wlan1): supplicant interface state: inactive -> scanning
Nov 25 19:55:46 mariya-N53SV wpa_supplicant[2619]: wlan1: Trying to associate with 64:d1:54:6b:22:c5 (SSID='nm-test' freq=2442 MHz)
Nov 25 19:55:46 mariya-N53SV wpa_supplicant[2619]: wlan1: Association request to the driver failed
Nov 25 19:55:46 mariya-N53SV NetworkManager[1213]: <info> (wlan1): supplicant interface state: scanning -> associating
Nov 25 19:55:51 mariya-N53SV wpa_supplicant[2619]: wlan1: Authentication with 64:d1:54:6b:22:c5 timed out.
Nov 25 19:55:51 mariya-N53SV wpa_supplicant[2619]: wlan1: CTRL-EVENT-DISCONNECTED bssid=64:d1:54:6b:22:c5 reason=3 locally_generated=1
Nov 25 19:55:51 mariya-N53SV NetworkManager[1213]: <warn> Connection disconnected (reason -3)
Nov 25 19:55:51 mariya-N53SV NetworkManager[1213]: <info> (wlan1): supplicant interface state: associating -> disconnected
Nov 25 19:55:51 mariya-N53SV NetworkManager[1213]: <info> (wlan1): supplicant interface state: disconnected -> scanning
Nov 25 19:56:01 mariya-N53SV NetworkManager[1213]: <warn> Activation (wlan1/wireless): association took too long, failing activation.

E parte do syslog conectando asus usb-n10 ao tp-link:

Nov 25 20:19:27 mariya-N53SV NetworkManager[1213]: <info> Activation (wlan1/wireless): connection 'TP-LINK_904936' requires no security.  No secrets needed.
Nov 25 20:19:27 mariya-N53SV NetworkManager[1213]: <info> Config: added 'ssid' value 'TP-LINK_904936'
Nov 25 20:19:27 mariya-N53SV NetworkManager[1213]: <info> Config: added 'scan_ssid' value '1'
Nov 25 20:19:27 mariya-N53SV NetworkManager[1213]: <info> Config: added 'key_mgmt' value 'NONE'
Nov 25 20:19:27 mariya-N53SV NetworkManager[1213]: <info> Activation (wlan1) Stage 2 of 5 (Device Configure) complete.
Nov 25 20:19:27 mariya-N53SV NetworkManager[1213]: <info> Config: set interface ap_scan to 1
Nov 25 20:19:27 mariya-N53SV NetworkManager[1213]: <info> (wlan1): supplicant interface state: inactive -> scanning
Nov 25 20:19:37 mariya-N53SV wpa_supplicant[2619]: wlan1: Trying to associate with 14:cc:20:90:49:36 (SSID='TP-LINK_904936' freq=2412 MHz)
Nov 25 20:19:37 mariya-N53SV wpa_supplicant[2619]: wlan1: Association request to the driver failed
Nov 25 20:19:37 mariya-N53SV NetworkManager[1213]: <info> (wlan1): supplicant interface state: scanning -> associating
Nov 25 20:19:38 mariya-N53SV wpa_supplicant[2619]: wlan1: Associated with 14:cc:20:90:49:36
Nov 25 20:19:38 mariya-N53SV wpa_supplicant[2619]: wlan1: CTRL-EVENT-CONNECTED - Connection to 14:cc:20:90:49:36 completed [id=0 id_str=]
Nov 25 20:19:38 mariya-N53SV kernel: [15889.927641] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready
Nov 25 20:19:38 mariya-N53SV NetworkManager[1213]: <info> (wlan1): supplicant interface state: associating -> completed
Nov 25 20:19:38 mariya-N53SV NetworkManager[1213]: <info> Activation (wlan1/wireless) Stage 2 of 5 (Device Configure) successful.  Connected to wireless network 'TP-LINK_904936'.

Últimos registros do mikrotik:

20:54:52 system,info,account user admin logged in from 192.168.88.254 via ssh 
20:56:00 wireless,info BC:EE:7B:85:5F:95@wlan1: connected 
20:56:14 wireless,info BC:EE:7B:85:5F:95@wlan1: disconnected, received deauth: sending station leaving (3) 

Todos os outros dispositivos se conectam com o mikrotik normalmente.

E agora não tenho ideia do que e onde consertar.