WIreless EUB-9703 randomly disconnects

English Network/Internet
1

Hello all

I just recently installed Opensuse 12.1 planning to use it as a media server.
I installed Play Station Media Server to stream wireless to PS3.
I am using Engenius Wireless USB EU-9703 and it has started to disconnect randomly, it seems only when streaming.

hwinfo --wlan

22: USB 00.0: 0282 WLAN controller                              
  [Created at usb.122]
  Unique ID: 2UT6.gbDjuYznWZ0
  Parent ID: k4bc.9T1GDCLyFd9
  SysFS ID: /devices/pci0000:00/0000:00:1d.7/usb1/1-3/1-3:1.0
  SysFS BusID: 1-3:1.0
  Hardware Class: network
  Model: "Ralink 802.11 n WLAN"
  Hotplug: USB
  Vendor: usb 0x1740 "Ralink"
  Device: usb 0x9703 "802.11 n WLAN"
  Revision: "1.01"
  Serial ID: "1.0"
  Driver: "rt2800usb"
  Driver Modules: "rt2800usb"
  Device File: wlan0
  Features: WLAN
  Speed: 480 Mbps
  HW Address: 00:02:6f:6d:01:5b
  Link detected: yes
  WLAN channels: 1 2 3 4 5 6 7 8 9 10 11 12 13 14
  WLAN frequencies: 2.412 2.417 2.422 2.427 2.432 2.437 2.442 2.447 2.452 2.457 2.462 2.467 2.472 2.484
  WLAN encryption modes: WEP40 WEP104 TKIP CCMP
  WLAN authentication modes: open sharedkey wpa-psk wpa-eap
  Module Alias: "usb:v1740p9703d0101dc00dsc00dp00icFFiscFFipFF"
  Driver Info #0:
    Driver Status: rt2800usb is active
    Driver Activation Cmd: "modprobe rt2800usb"
  Config Status: cfg=no, avail=yes, need=no, active=unknown
  Attached to: #17 (Hub)

dmesg -T results

[Sat May 19 13:21:29 2012] ieee80211 phy0: wlan0: No probe response from AP 00:1a:2b:3c:ff:02 after 500ms, disconnecting.
[Sat May 19 13:21:29 2012] cfg80211: Calling CRDA to update world regulatory domain
[Sat May 19 13:21:29 2012] cfg80211: World regulatory domain updated:
[Sat May 19 13:21:29 2012] cfg80211:     (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp)
[Sat May 19 13:21:29 2012] cfg80211:     (2402000 KHz - 2472000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
[Sat May 19 13:21:29 2012] cfg80211:     (2457000 KHz - 2482000 KHz @ 20000 KHz), (300 mBi, 2000 mBm)
[Sat May 19 13:21:29 2012] cfg80211:     (2474000 KHz - 2494000 KHz @ 20000 KHz), (300 mBi, 2000 mBm)
[Sat May 19 13:21:29 2012] cfg80211:     (5170000 KHz - 5250000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
[Sat May 19 13:21:29 2012] cfg80211:     (5735000 KHz - 5835000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
[Sat May 19 13:21:30 2012] wlan0: authenticate with 00:1a:2b:3c:ff:02 (try 1)
[Sat May 19 13:21:31 2012] wlan0: authenticate with 00:1a:2b:3c:ff:02 (try 2)
[Sat May 19 13:21:31 2012] wlan0: authenticate with 00:1a:2b:3c:ff:02 (try 3)
[Sat May 19 13:21:31 2012] wlan0: authenticated
[Sat May 19 13:21:31 2012] wlan0: associate with 00:1a:2b:3c:ff:02 (try 1)
[Sat May 19 13:21:31 2012] wlan0: RX ReassocResp from 00:1a:2b:3c:ff:02 (capab=0x401 status=0 aid=1)
[Sat May 19 13:21:31 2012] wlan0: associated
[Sat May 19 13:24:30 2012] ieee80211 phy0: wlan0: No probe response from AP 00:1a:2b:3c:ff:02 after 500ms, disconnecting.
[Sat May 19 13:24:30 2012] cfg80211: Calling CRDA to update world regulatory domain
[Sat May 19 13:24:30 2012] cfg80211: World regulatory domain updated:
[Sat May 19 13:24:30 2012] cfg80211:     (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp)
[Sat May 19 13:24:30 2012] cfg80211:     (2402000 KHz - 2472000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
[Sat May 19 13:24:30 2012] cfg80211:     (2457000 KHz - 2482000 KHz @ 20000 KHz), (300 mBi, 2000 mBm)
[Sat May 19 13:24:30 2012] cfg80211:     (2474000 KHz - 2494000 KHz @ 20000 KHz), (300 mBi, 2000 mBm)
[Sat May 19 13:24:30 2012] cfg80211:     (5170000 KHz - 5250000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
[Sat May 19 13:24:30 2012] cfg80211:     (5735000 KHz - 5835000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
[Sat May 19 13:24:38 2012] wlan0: authenticate with 00:1a:2b:3c:ff:02 (try 1)
[Sat May 19 13:24:38 2012] wlan0: authenticated
[Sat May 19 13:24:38 2012] wlan0: associate with 00:1a:2b:3c:ff:02 (try 1)
[Sat May 19 13:24:38 2012] wlan0: RX ReassocResp from 00:1a:2b:3c:ff:02 (capab=0x401 status=0 aid=1)
[Sat May 19 13:24:38 2012] wlan0: associated

iwconfig results

wlan0     IEEE 802.11bgn  ESSID:"ASUS"  
          Mode:Managed  Frequency:2.412 GHz  Access Point: 00:1A:2B:3C:FF:02   
          Bit Rate=135 Mb/s   Tx-Power=20 dBm   
          Retry  long limit:7   RTS thr:off   Fragment thr:off
          Encryption key:off
          Power Management:off
          Link Quality=41/70  Signal level=-69 dBm  
          Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
          Tx excessive retries:220  Invalid misc:362   Missed beacon:0

Appreciate any help.

2

There are probably too many possible causes for intermittent connectivity when connecting over WiFi.

Recommend:

  • Test over wired connection to isolate whether the problem is likely related to wireless
  • Test your wireless over a very short distance (eg same room, devices within a few feet or meters with antenna oriented properly)
  • Stay away from anything that can cause EMF
  • Consider enlarging your TCP/IP buffers and changing your TCP/IP congestion control. I’ve aggregated everything I can find on the Internet on this topic and have posted my recommendations at the following URL

Optimize and Fix your Network Connection - Su Networking Technical

HTH,
TS

3

My 2 cents: ipV6 is on. Start Yast - Network - Networksettings, uncheck ipV6, OK, reboot and try again. If I use ipV6 I get exactly the same issues.

4

Thanks very much , I will take a look

5

Thanks, I did try this before but it had no effect, thanks anyway