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bialy

Member

Registered: 2014-01-16

Posts: 1

Unable to get DHCP lease after connection. TL-WN725N (RTL8188EU)

Hi,

Recently I bought WiFi dongle for my RPi, but it didn't work OOTB. I download and compiled sources from https://github.com/lwfinger/rtl8188eu, and then I was able to connect to the AP.  Although when I run dhcpcd there was no DHCP offer from a router. I decided to switch to new kernel 3.12 which supports 8188EU chipset. But that didn't resolve my problem. I also checked that issue on my laptop with another wireless adapter (iwl3945) by using wpa_supplicant + dhcpcd. In the same time I was able to connect to AP using both devices, but only iwl3945 got a DHCP configuration. I tried both kernel and github module, but without any luck. Is this software issue or configuration problem?

EDIT:

Toaday I tried again and this time I was unable to connect to my home WiFi. I also tested my phone as WiFi router, and there was no problems with that.

Scan from wpa_cli

38:aa:3c:bf:4b:2e	2462	96	[WPA2-PSK-CCMP][ESS]	AndroidAP
f8:d1:11:55:6c:02	2437	74	[WPA2-PSK-TKIP+CCMP][WPS][ESS]	webchannel

wpa_supplicant Realtek Semiconductor Corp. RTL8188EUS 802.11n:

wlan1: Trying to associate with 38:aa:3c:bf:4b:2e (SSID='AndroidAP' freq=2462 MHz)
wlan1: Associated with 38:aa:3c:bf:4b:2e
wlan1: WPA: Key negotiation completed with 38:aa:3c:bf:4b:2e [PTK=CCMP GTK=CCMP]
wlan1: CTRL-EVENT-CONNECTED - Connection to 38:aa:3c:bf:4b:2e completed [id=0 id_str=]
//
wlan1: Trying to associate with f8:d1:11:55:6c:02 (SSID='webchannel' freq=2437 MHz)
wlan1: CTRL-EVENT-DISCONNECTED bssid=f8:d1:11:55:6c:02 reason=0
wlan1: Trying to associate with f8:d1:11:55:6c:02 (SSID='webchannel' freq=2437 MHz)
wlan1: CTRL-EVENT-DISCONNECTED bssid=f8:d1:11:55:6c:02 reason=0
dbus: wpas_dbus_bss_signal_prop_changed: Unknown Property value 7
wlan1: Trying to associate with f8:d1:11:55:6c:02 (SSID='webchannel' freq=2437 MHz)
wlan1: CTRL-EVENT-DISCONNECTED bssid=f8:d1:11:55:6c:02 reason=0
wlan1: Trying to associate with f8:d1:11:55:6c:02 (SSID='webchannel' freq=2437 MHz)
wlan1: CTRL-EVENT-DISCONNECTED bssid=f8:d1:11:55:6c:02 reason=0
dbus: wpas_dbus_bss_signal_prop_changed: Unknown Property value 7
wlan1: Trying to associate with f8:d1:11:55:6c:02 (SSID='webchannel' freq=2437 MHz)
wlan1: Associated with f8:d1:11:55:6c:02
wlan1: Authentication with f8:d1:11:55:6c:02 timed out.
ioctl[SIOCSIWAP]: Operation not permitted
wlan1: CTRL-EVENT-DISCONNECTED bssid=f8:d1:11:55:6c:02 reason=3 locally_generated=1
dbus: wpas_dbus_bss_signal_prop_changed: Unknown Property value 7
wlan1: Trying to associate with f8:d1:11:55:6c:02 (SSID='webchannel' freq=2437 MHz)
wlan1: CTRL-EVENT-DISCONNECTED bssid=f8:d1:11:55:6c:02 reason=0

wpa_supplicant on Intel Corporation PRO/Wireless 3945ABG

wlan0: Trying to associate with f8:d1:11:55:6c:02 (SSID='webchannel' freq=2437 MHz)
ioctl[SIOCSIWFREQ]: Device or resource busy
wlan0: Association request to the driver failed
wlan0: Associated with f8:d1:11:55:6c:02
wlan0: WPA: Key negotiation completed with f8:d1:11:55:6c:02 [PTK=CCMP GTK=TKIP]
wlan0: CTRL-EVENT-CONNECTED - Connection to f8:d1:11:55:6c:02 completed [id=0 id_str=]

Scan results on Intel Corporation PRO/Wireless 3945ABG:

Cell 01 - Address: F8:D1:11:55:6C:02
    Channel:6
    Frequency:2.437 GHz (Channel 6)
    Quality=62/70  Signal level=-48 dBm  
    Encryption key:on
    ESSID:"webchannel"
    Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 6 Mb/s
              9 Mb/s; 12 Mb/s; 18 Mb/s
    Bit Rates:24 Mb/s; 36 Mb/s; 48 Mb/s; 54 Mb/s
    Mode:Master
    Extra:tsf=00000037b7dffcae
    Extra: Last beacon: 33ms ago
    IE: IEEE 802.11i/WPA2 Version 1
        Group Cipher : TKIP
        Pairwise Ciphers (2) : CCMP TKIP
        Authentication Suites (1) : PSK


Channel:11
    Frequency:2.462 GHz (Channel 11)
    Quality=70/70  Signal level=-33 dBm  
    Encryption key:on
    ESSID:"AndroidAP"
    Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 18 Mb/s
              24 Mb/s; 36 Mb/s; 54 Mb/s
    Bit Rates:6 Mb/s; 9 Mb/s; 12 Mb/s; 48 Mb/s
    Mode:Master
    Extra:tsf=00000000004094b0
    Extra: Last beacon: 73ms ago
    IE: IEEE 802.11i/WPA2 Version 1
        Group Cipher : CCMP
        Pairwise Ciphers (1) : CCMP
        Authentication Suites (1) : PSK

Scan results on Realtek Semiconductor Corp. RTL8188EUS 802.11n:

Cell 12 - Address: F8:D1:11:55:6C:02
    ESSID:"webchannel"
    Protocol:IEEE 802.11bgn
    Mode:Master
    Frequency:2.437 GHz (Channel 6)
    Encryption key:on
    Bit Rates:108 Mb/s
    Extra:rsn_ie =30180100000fac020200000fac04000fac020100000fac020000
    IE: IEEE 802.11i/WPA2 Version 1
        Group Cipher : TKIP
        Pairwise Ciphers (2) : CCMP TKIP
        Authentication Suites (1) : PSK
    Quality=45/100  Signal level=62/100 

Cell 15 - Address: 38:AA:3C:BF:4B:2E
    ESSID:"AndroidAP"
    Protocol:IEEE 802.11bgn
    Mode:Master
    Frequency:2.462 GHz (Channel 11)
    Encryption key:on
    Bit Rates:108 Mb/s
    Extra:rsn_ie =30140100000fac040100000fac040100000fac020c00
    IE: IEEE 802.11i/WPA2 Version 1
        Group Cipher : CCMP
        Pairwise Ciphers (1) : CCMP
        Authentication Suites (1) : PSK
    Quality=0/100  Signal level=74/100  

Later I could try to connect to other networks with different authentication protocols if this will help anybody.

Last edited by bialy (2014-01-17 12:27:50)