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megasoft
Posts: 11
Joined: Wed Feb 18, 2015 12:55 pm

Wifi dongle disconnects after about 10 seconds

Fri Mar 20, 2015 1:59 pm

Hi,
I'm have a Raspberry Pi 2 with Kernel 3.18.8-v7+ (Wheezy). I used the Edimax Wifi dongle for a while and it worked fine but I needed a larger distance so I decided to try a WifI USB dongle that comes with an Antena.

It's a cheep Chinese dongle using the RTL8188EUS chipset. After installing and everything I'm able to connect to my router using wicd-curses. It successfully connects and stays connected for about 10 seconds and the networks is fast and works fine. Then it simply disconnects. Since I configured it to automatically connect I get about 10 seconds of connection and then about 10 seconds of disconnect (the time it takes to reconnect again...) in a loop.

I tried with a few power adapter, including a powerful one with 5V and 2A and that didn't change anything.
I tried a different pi (with same SD card) and same thing.
I have 3 of these dongles and they all behave the same.
So, it's not a hardware problem. This is what I get in the syslog:

Code: Select all

Mar 20 13:24:32 raspberrypi dhclient: Internet Systems Consortium DHCP Client 4.2.2
Mar 20 13:24:32 raspberrypi dhclient: Copyright 2004-2011 Internet Systems Consortium.
Mar 20 13:24:32 raspberrypi dhclient: All rights reserved.
Mar 20 13:24:32 raspberrypi dhclient: For info, please visit https://www.isc.org/software/dhcp/
Mar 20 13:24:32 raspberrypi dhclient: 
Mar 20 13:24:33 raspberrypi dhclient: Listening on LPF/wlan0/00:f1:40:82:1c:21
Mar 20 13:24:33 raspberrypi dhclient: Sending on   LPF/wlan0/00:f1:40:82:1c:21
Mar 20 13:24:33 raspberrypi dhclient: Sending on   Socket/fallback
Mar 20 13:24:33 raspberrypi dhclient: DHCPRELEASE on wlan0 to 192.168.1.1 port 67
Mar 20 13:24:33 raspberrypi avahi-daemon[2531]: Withdrawing address record for 192.168.1.25 on wlan0.
Mar 20 13:24:33 raspberrypi avahi-daemon[2531]: Leaving mDNS multicast group on interface wlan0.IPv4 with address 192.168.1.25.
Mar 20 13:24:33 raspberrypi avahi-daemon[2531]: Interface wlan0.IPv4 no longer relevant for mDNS.
Mar 20 13:24:33 raspberrypi kernel: [  175.625177] R8188EU: ERROR indicate disassoc
Mar 20 13:24:33 raspberrypi kernel: [  175.757397] R8188EU: ERROR indicate disassoc
Mar 20 13:24:33 raspberrypi dhclient: Internet Systems Consortium DHCP Client 4.2.2
Mar 20 13:24:33 raspberrypi dhclient: Copyright 2004-2011 Internet Systems Consortium.
Mar 20 13:24:33 raspberrypi dhclient: All rights reserved.
Mar 20 13:24:33 raspberrypi dhclient: For info, please visit https://www.isc.org/software/dhcp/
Mar 20 13:24:33 raspberrypi dhclient: 
Mar 20 13:24:33 raspberrypi dhclient: Listening on LPF/wlan0/00:f1:40:82:1c:21
Mar 20 13:24:33 raspberrypi dhclient: Sending on   LPF/wlan0/00:f1:40:82:1c:21
Mar 20 13:24:33 raspberrypi dhclient: Sending on   Socket/fallback
Mar 20 13:24:33 raspberrypi dhclient: DHCPRELEASE on wlan0 to 192.168.1.1 port 67
Mar 20 13:24:33 raspberrypi dhclient: send_packet: Network is unreachable
Mar 20 13:24:33 raspberrypi dhclient: send_packet: please consult README file regarding broadcast address.
Mar 20 13:24:33 raspberrypi kernel: [  176.043820] R8188EU: ERROR indicate disassoc
Mar 20 13:24:33 raspberrypi dhclient: Internet Systems Consortium DHCP Client 4.2.2
Mar 20 13:24:33 raspberrypi dhclient: Copyright 2004-2011 Internet Systems Consortium.
Mar 20 13:24:33 raspberrypi dhclient: All rights reserved.
Mar 20 13:24:33 raspberrypi dhclient: For info, please visit https://www.isc.org/software/dhcp/
Mar 20 13:24:33 raspberrypi dhclient: 
Mar 20 13:24:33 raspberrypi dhclient: Listening on LPF/eth0/b8:27:eb:06:13:3c
Mar 20 13:24:33 raspberrypi dhclient: Sending on   LPF/eth0/b8:27:eb:06:13:3c
Mar 20 13:24:33 raspberrypi dhclient: Sending on   Socket/fallback
Mar 20 13:24:33 raspberrypi kernel: [  176.338641] smsc95xx 1-1.1:1.0 eth0: hardware isn't capable of remote wakeup
Mar 20 13:24:34 raspberrypi kernel: [  176.416330] smsc95xx 1-1.1:1.0 eth0: hardware isn't capable of remote wakeup
Mar 20 13:24:36 raspberrypi ntpd[2415]: Deleting interface #2 wlan0, 192.168.1.25#123, interface stats: received=0, sent=1, dropped=0, active_time=21 secs
Mar 20 13:24:36 raspberrypi ntpd[2415]: 212.199.182.150 interface 192.168.1.25 -> (none)
Mar 20 13:24:36 raspberrypi ntpd[2415]: peers refreshed
Mar 20 13:24:40 raspberrypi dhclient: Internet Systems Consortium DHCP Client 4.2.2
Mar 20 13:24:40 raspberrypi dhclient: Copyright 2004-2011 Internet Systems Consortium.
Mar 20 13:24:40 raspberrypi dhclient: All rights reserved.
Mar 20 13:24:40 raspberrypi dhclient: For info, please visit https://www.isc.org/software/dhcp/
Mar 20 13:24:40 raspberrypi dhclient: 
Mar 20 13:24:40 raspberrypi dhclient: Listening on LPF/wlan0/00:f1:40:82:1c:21
Mar 20 13:24:40 raspberrypi dhclient: Sending on   LPF/wlan0/00:f1:40:82:1c:21
Mar 20 13:24:40 raspberrypi dhclient: Sending on   Socket/fallback
Mar 20 13:24:40 raspberrypi dhclient: DHCPRELEASE on wlan0 to 192.168.1.1 port 67
Mar 20 13:24:40 raspberrypi dhclient: send_packet: Network is unreachable
Mar 20 13:24:40 raspberrypi dhclient: send_packet: please consult README file regarding broadcast address.
Mar 20 13:24:40 raspberrypi kernel: [  182.653467] R8188EU: ERROR indicate disassoc
Mar 20 13:24:40 raspberrypi dhclient: Internet Systems Consortium DHCP Client 4.2.2
Mar 20 13:24:40 raspberrypi dhclient: Copyright 2004-2011 Internet Systems Consortium.
Mar 20 13:24:40 raspberrypi dhclient: All rights reserved.
Mar 20 13:24:40 raspberrypi dhclient: For info, please visit https://www.isc.org/software/dhcp/
Mar 20 13:24:40 raspberrypi dhclient: 
Mar 20 13:24:40 raspberrypi dhclient: Listening on LPF/eth0/b8:27:eb:06:13:3c
Mar 20 13:24:40 raspberrypi dhclient: Sending on   LPF/eth0/b8:27:eb:06:13:3c
Mar 20 13:24:40 raspberrypi dhclient: Sending on   Socket/fallback
Mar 20 13:24:40 raspberrypi kernel: [  182.948693] smsc95xx 1-1.1:1.0 eth0: hardware isn't capable of remote wakeup
Mar 20 13:24:40 raspberrypi kernel: [  183.020876] smsc95xx 1-1.1:1.0 eth0: hardware isn't capable of remote wakeup
Mar 20 13:24:46 raspberrypi dhclient: Internet Systems Consortium DHCP Client 4.2.2
Mar 20 13:24:46 raspberrypi dhclient: Copyright 2004-2011 Internet Systems Consortium.
Mar 20 13:24:46 raspberrypi dhclient: All rights reserved.
Mar 20 13:24:46 raspberrypi dhclient: For info, please visit https://www.isc.org/software/dhcp/
Mar 20 13:24:46 raspberrypi dhclient: 
Mar 20 13:24:46 raspberrypi dhclient: Listening on LPF/wlan0/00:f1:40:82:1c:21
Mar 20 13:24:46 raspberrypi dhclient: Sending on   LPF/wlan0/00:f1:40:82:1c:21
Mar 20 13:24:46 raspberrypi dhclient: Sending on   Socket/fallback
Mar 20 13:24:46 raspberrypi dhclient: DHCPRELEASE on wlan0 to 192.168.1.1 port 67
Mar 20 13:24:46 raspberrypi dhclient: send_packet: Network is unreachable
Mar 20 13:24:46 raspberrypi dhclient: send_packet: please consult README file regarding broadcast address.
Mar 20 13:24:46 raspberrypi kernel: [  189.113802] R8188EU: ERROR indicate disassoc
Mar 20 13:24:46 raspberrypi dhclient: Internet Systems Consortium DHCP Client 4.2.2
Mar 20 13:24:46 raspberrypi dhclient: Copyright 2004-2011 Internet Systems Consortium.
Mar 20 13:24:46 raspberrypi dhclient: All rights reserved.
Mar 20 13:24:46 raspberrypi dhclient: For info, please visit https://www.isc.org/software/dhcp/
Mar 20 13:24:46 raspberrypi dhclient:
Any ideas?

Thanks
megasoft
Posts: 11
Joined: Wed Feb 18, 2015 12:55 pm

Re: Wifi dongle disconnects after about 10 seconds

Fri Mar 20, 2015 2:21 pm

One more thing:
The dongle has a blue led. When it's connected the led is blinking and then after a few seconds is simply turns off for a few seconds (the led) and that's when the dongle is disconnected. After that it starts again and re-connects. It's as if it shuts itself down every few seconds. Very strange.
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