Ubuntu 12.04 loses wireless connection
UBUNTU 12.04 loses it's wireless connection when active. I am connected wirelessly to my router (ASUS RT-N16) with an AirLink AWLH6080 PCI B/G/N wireless card. My initial 12.04 install was an upgrade from 11.10. I installed all the updates through 14 May 2012 and the problem persisted. Last night I did a “fresh” Ubuntu 12.04 install with no updates and the problem still existed.
The connection is occassionally lost while surfing the net, always lost when transfeting large files to my NAS or when attempting to send emails with moderate to large attachments. The message I receive when the email connection fails is: “An error occurred while sending mail. The mail server responded: 4.4.2 service timed out.. Please check the message and try again.” If I hookup a Ethernet cable to the computer Ubuntu 12.04 will transfer files to the NAS and send large Emails reliably.
This computer has 2 hard drives with dedicated Windows 7, Windows XP, Windows 2000, Ubuntu 11.04 & Ubuntu 12.04 boot partitions. The same “Test File” that consistantly breaks the Ubuntu 12.04 wireless connection can be completely sent to my NAS by all of the Windows versions and Ubuntu 11.04. Emails that are to large to forward wirelessly from 12.04 forward reliably from 11.04 over the wireless network.
I have tried changing the IPv6 setting from “Automatic” to “Ignore”, requiring IPv4 addressing and have “Available to all users” checked. I have also tried putting the following lines in /etc/modprobe.
Has anybody found a solution to maintaining a reliable wireless connection in Ubuntu 12.04?
Question information
- Language:
- English Edit question
- Status:
- Solved
- Assignee:
- No assignee Edit question
- Solved by:
- Mark Rijckenberg
- Solved:
- Last query:
- Last reply:
|
Revision history for this message
|
#1 |
Hi,
Please first connect your wired network adapter to the wireless router using an ethernet cable (also known as a LAN cable).
In order to gather essential troubleshooting information about your wireless card, please follow this procedure:
Step 1:
If you are using the Gnome interface, open the Terminal console via "Applications-
If you are using the Unity interface, the easiest way to open the Terminal is to use the 'search' function on the dash. Or you can click on the 'More Apps' button, click on the 'See more results' by the installed section, and find it in that list of applications. A third way, available after you click on the 'More Apps' button, is to go to the search bar, and see that the far right end of it says 'All Applications'. You then click on that, and you'll see the full list. Then you can go to Accessories > Terminal after that.
So the methods in Unity are:
Dash > Search for Terminal
Dash > More Apps > 'See More Results' > Terminal
Dash > More Apps > Accessories > Terminal
Step 2: Please copy-paste the following command from https:/
Tip: If you have a wheel mouse or 3 button mouse you do not need to type commands into the Terminal. Highlight the command written on the page. Move your cursor anywhere in the Terminal and press the wheel or middle button. Automatic Copy and paste! No spelling mistakes! No Typos! No other errors!
sudo apt-get update; sudo apt-get install hwinfo grep rfkill; sudo lshw -C network; rfkill list; sudo iwlist scanning; cat /etc/network/
Step 3: Please post results (copy/paste terminal output) on this thread. The troubleshooters here need to see the full Terminal output from running the above command.
Step 4: Please also specify the exact model and make of your PC (if known) on this thread
Regards,
Mark
|
Revision history for this message
|
#2 |
I built the computer from parts purchased @ Fry's. The MB is an ECS PT890T-A with an Intel E4300 core2 duo running @ 1800 MHz with 2 gigabytes of memory. I have three of these computers and have duplicated the lost connection problem on all three.
root@PT890T-A3:~# lspci -nn
00:00.0 Host bridge [0600]: VIA Technologies, Inc. P4M890 Host Bridge [1106:0327]
00:00.1 Host bridge [0600]: VIA Technologies, Inc. P4M890 Host Bridge [1106:1327]
00:00.2 Host bridge [0600]: VIA Technologies, Inc. P4M890 Host Bridge [1106:2327]
00:00.3 Host bridge [0600]: VIA Technologies, Inc. P4M890 Host Bridge [1106:3327]
00:00.4 Host bridge [0600]: VIA Technologies, Inc. P4M890 Host Bridge [1106:4327]
00:00.5 PIC [0800]: VIA Technologies, Inc. P4M890 I/O APIC Interrupt Controller [1106:5327]
00:00.6 Host bridge [0600]: VIA Technologies, Inc. P4M890 Security Device [1106:6327]
00:00.7 Host bridge [0600]: VIA Technologies, Inc. P4M890 Host Bridge [1106:7327]
00:01.0 PCI bridge [0604]: VIA Technologies, Inc. VT8237/VX700 PCI Bridge [1106:b198]
00:02.0 PCI bridge [0604]: VIA Technologies, Inc. P4M890 PCI to PCI Bridge Controller [1106:a327]
00:03.0 PCI bridge [0604]: VIA Technologies, Inc. P4M890 PCI to PCI Bridge Controller [1106:c327]
00:0f.0 IDE interface [0101]: VIA Technologies, Inc. VT8237A SATA 2-Port Controller [1106:0591] (rev 80)
00:0f.1 IDE interface [0101]: VIA Technologies, Inc. VT82C586A/
00:10.0 USB controller [0c03]: VIA Technologies, Inc. VT82xxxxx UHCI USB 1.1 Controller [1106:3038] (rev a0)
00:10.1 USB controller [0c03]: VIA Technologies, Inc. VT82xxxxx UHCI USB 1.1 Controller [1106:3038] (rev a0)
00:10.2 USB controller [0c03]: VIA Technologies, Inc. VT82xxxxx UHCI USB 1.1 Controller [1106:3038] (rev a0)
00:10.3 USB controller [0c03]: VIA Technologies, Inc. VT82xxxxx UHCI USB 1.1 Controller [1106:3038] (rev a0)
00:10.4 USB controller [0c03]: VIA Technologies, Inc. USB 2.0 [1106:3104] (rev 86)
00:11.0 ISA bridge [0601]: VIA Technologies, Inc. VT8237A PCI to ISA Bridge [1106:3337]
00:11.7 Host bridge [0600]: VIA Technologies, Inc. VT8237/8251 Ultra VLINK Controller [1106:287e]
00:12.0 Ethernet controller [0200]: VIA Technologies, Inc. VT6102 [Rhine-II] [1106:3065] (rev 7c)
00:13.0 PCI bridge [0604]: VIA Technologies, Inc. VT8237A Host Bridge [1106:337b]
00:13.1 PCI bridge [0604]: VIA Technologies, Inc. VT8237A PCI to PCI Bridge [1106:337a]
02:00.0 VGA compatible controller [0300]: NVIDIA Corporation G73 [GeForce 7600 GT] [10de:0391] (rev a1)
03:00.0 Multimedia controller [0480]: ViXS Systems, Inc. XCode 2100 Series [1745:2100]
04:01.0 Audio device [0403]: VIA Technologies, Inc. VT8237A/VT8251 HDA Controller [1106:3288] (rev 10)
05:05.0 Network controller [0280]: Ralink corp. RT2800 802.11n PCI [1814:0601]
root@PT890T-A3:~#
Hit http://
Hit http://
Hit http://
Hit http://
Get:33 http://
Get:34 http://
Get:35 http://
Get:36 http://
Get:37 http://
Get:38 http://
Get:39 http://
Get:40 http://
Get:41 http://
Get:42 http://
Get:43 http://
Get:44 http://
Hit http://
Hit http://
Hit http://
Hit http://
Get:45 http://
Get:46 http://
Get:47 http://
Get:48 http://
Get:49 http://
Get:50 http://
Get:51 http://
Get:52 http://
Get:53 http://
Get:54 http://
Get:55 http://
Get:56 http://
Hit http://
Hit http://
Hit http://
Hit http://
Hit http://
Hit http://
Hit http://
Hit http://
Hit http://
Hit http://
Hit http://
Hit http://
Hit http://
Hit http://
Hit http://
Hit http://
Fetched 19.1 MB in 14s (1,297 kB/s)
Reading package lists... Done
Reading package lists... Done
Building dependency tree
Reading state information... Done
grep is already the newest version.
rfkill is already the newest version.
hwinfo is already the newest version.
0 upgraded, 0 newly installed, 0 to remove and 136 not upgraded.
*-network
description: Ethernet interface
product: VT6102 [Rhine-II]
vendor: VIA Technologies, Inc.
physical id: 12
bus info: pci@0000:00:12.0
logical name: eth0
version: 7c
serial: 00:19:21:8b:e2:59
size: 100Mbit/s
capacity: 100Mbit/s
width: 32 bits
clock: 33MHz
resources: irq:23 ioport:
*-network
description: Wireless interface
product: RT2800 802.11n PCI
vendor: Ralink corp.
physical id: 5
bus info: pci@0000:05:05.0
logical name: wlan0
version: 00
serial: 00:18:02:60:8a:44
width: 32 bits
clock: 33MHz
resources: irq:18 memory:
0: phy0: Wireless LAN
Soft blocked: no
Hard blocked: no
lo Interface doesn't support scanning.
wlan0 Scan completed :
Cell 01 - Address: 48:5B:39:E7:CA:BB
Cell 02 - Address: 00:1F:33:F7:02:DA
Cell 03 - Address: C4:3D:C7:70:C4:5C
Cell 04 - Address: B8:A3:86:E6:70:51
eth0 Interface doesn't support scanning.
auto lo
iface lo inet loopback
DISTRIB_ID=Ubuntu
DISTRIB_
DISTRIB_
DISTRIB_
00:00.0 Host bridge [0600]: VIA Technologies, Inc. P4M890 Host Bridge [1106:0327]
00:00.1 Host bridge [0600]: VIA Technologies, Inc. P4M890 Host Bridge [1106:1327]
00:00.2 Host bridge [0600]: VIA Technologies, Inc. P4M890 Host Bridge [1106:2327]
00:00.3 Host bridge [0600]: VIA Technologies, Inc. P4M890 Host Bridge [1106:3327]
00:00.4 Host bridge [0600]: VIA Technologies, Inc. P4M890 Host Bridge [1106:4327]
00:00.5 PIC [0800]: VIA Technologies, Inc. P4M890 I/O APIC Interrupt Controller [1106:5327]
00:00.6 Host bridge [0600]: VIA Technologies, Inc. P4M890 Security Device [1106:6327]
00:00.7 Host bridge [0600]: VIA Technologies, Inc. P4M890 Host Bridge [1106:7327]
00:01.0 PCI bridge [0604]: VIA Technologies, Inc. VT8237/VX700 PCI Bridge [1106:b198]
00:02.0 PCI bridge [0604]: VIA Technologies, Inc. P4M890 PCI to PCI Bridge Controller [1106:a327]
00:03.0 PCI bridge [0604]: VIA Technologies, Inc. P4M890 PCI to PCI Bridge Controller [1106:c327]
00:0f.0 IDE interface [0101]: VIA Technologies, Inc. VT8237A SATA 2-Port Controller [1106:0591] (rev 80)
00:0f.1 IDE interface [0101]: VIA Technologies, Inc. VT82C586A/
00:10.0 USB controller [0c03]: VIA Technologies, Inc. VT82xxxxx UHCI USB 1.1 Controller [1106:3038] (rev a0)
00:10.1 USB controller [0c03]: VIA Technologies, Inc. VT82xxxxx UHCI USB 1.1 Controller [1106:3038] (rev a0)
00:10.2 USB controller [0c03]: VIA Technologies, Inc. VT82xxxxx UHCI USB 1.1 Controller [1106:3038] (rev a0)
00:10.3 USB controller [0c03]: VIA Technologies, Inc. VT82xxxxx UHCI USB 1.1 Controller [1106:3038] (rev a0)
00:10.4 USB controller [0c03]: VIA Technologies, Inc. USB 2.0 [1106:3104] (rev 86)
00:11.0 ISA bridge [0601]: VIA Technologies, Inc. VT8237A PCI to ISA Bridge [1106:3337]
00:11.7 Host bridge [0600]: VIA Technologies, Inc. VT8237/8251 Ultra VLINK Controller [1106:287e]
00:12.0 Ethernet controller [0200]: VIA Technologies, Inc. VT6102 [Rhine-II] [1106:3065] (rev 7c)
00:13.0 PCI bridge [0604]: VIA Technologies, Inc. VT8237A Host Bridge [1106:337b]
00:13.1 PCI bridge [0604]: VIA Technologies, Inc. VT8237A PCI to PCI Bridge [1106:337a]
02:00.0 VGA compatible controller [0300]: NVIDIA Corporation G73 [GeForce 7600 GT] [10de:0391] (rev a1)
03:00.0 Multimedia controller [0480]: ViXS Systems, Inc. XCode 2100 Series [1745:2100]
04:01.0 Audio device [0403]: VIA Technologies, Inc. VT8237A/VT8251 HDA Controller [1106:3288] (rev 10)
05:05.0 Network controller [0280]: Ralink corp. RT2800 802.11n PCI [1814:0601]
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 002 Device 002: ID 046d:c018 Logitech, Inc. Optical Wheel Mouse
Bus 003 Device 002: ID 03f0:010c Hewlett-Packard Multimedia Keyboard Hub
Bus 003 Device 003: ID 03f0:020c Hewlett-Packard Multimedia Keyboard
H/W path Device Class Description
=======
/0 bus PT890T-A
/0/0 memory 64KiB BIOS
/0/4 processor Intel(R) Core(TM)2 CPU 4300 @ 1.80GHz
/0/4/5 memory 64KiB L1 cache
/0/4/6 memory 2MiB L2 cache
/0/27 memory 2GiB System Memory
/0/27/0 memory 1GiB DIMM DDR2 Synchronous
/0/27/1 memory 1GiB DIMM DDR2 Synchronous
/0/100 bridge P4M890 Host Bridge
/0/100/0.5 generic P4M890 I/O APIC Interrupt Controller
/0/100/1 bridge VT8237/VX700 PCI Bridge
/0/100/2 bridge P4M890 PCI to PCI Bridge Controller
/0/100/2/0 display G73 [GeForce 7600 GT]
/0/100/3 bridge P4M890 PCI to PCI Bridge Controller
/0/100/3/0 multimedia XCode 2100 Series
/0/100/f scsi0 storage VT8237A SATA 2-Port Controller
/0/100/f/0.0.0 /dev/sda disk 500GB Maxtor 7H500F0
/0/100/f/0.0.0/1 /dev/sda1 volume 30GiB Windows NTFS volume
/0/100/f/0.0.0/2 /dev/sda2 volume 50GiB Windows NTFS volume
/0/100/f/0.0.0/3 /dev/sda3 volume 345GiB Windows NTFS volume
/0/100/f/0.0.0/4 /dev/sda4 volume 40GiB Extended partition
/0/100/f/0.0.0/4/5 /dev/sda5 volume 38GiB Linux filesystem partition
/0/100/f/0.0.0/4/6 /dev/sda6 volume 1721MiB Linux swap / Solaris partition
/0/100/f.1 scsi2 storage VT82C586A/
/0/100/f.1/0.0.0 /dev/cdrom disk DVD_RW ND-3520A
/0/100/f.1/0.1.0 /dev/sdb disk 500GB ST3500630A
/0/100/f.1/0.1.0/1 /dev/sdb1 volume 20GiB Windows NTFS volume
/0/100/f.1/0.1.0/2 /dev/sdb2 volume 10GiB Windows NTFS volume
/0/100/f.1/0.1.0/3 /dev/sdb3 volume 105GiB Extended partition
/0/100/
/0/100/
/0/100/f.1/0.1.0/4 /dev/sdb4 volume 330GiB Windows NTFS volume
/0/100/10 bus VT82xxxxx UHCI USB 1.1 Controller
/0/100/10.1 bus VT82xxxxx UHCI USB 1.1 Controller
/0/100/10.2 bus VT82xxxxx UHCI USB 1.1 Controller
/0/100/10.3 bus VT82xxxxx UHCI USB 1.1 Controller
/0/100/10.4 bus USB 2.0
/0/100/11 bridge VT8237A PCI to ISA Bridge
/0/100/12 eth0 network VT6102 [Rhine-II]
/0/100/13 bridge VT8237A Host Bridge
/0/100/13/1 multimedia VT8237A/VT8251 HDA Controller
/0/100/13.1 bridge VT8237A PCI to PCI Bridge
/0/100/13.1/5 wlan0 network RT2800 802.11n PCI
/0/101 bridge P4M890 Host Bridge
/0/102 bridge P4M890 Host Bridge
/0/103 bridge P4M890 Host Bridge
/0/104 bridge P4M890 Host Bridge
/0/105 bridge P4M890 Security Device
/0/106 bridge P4M890 Host Bridge
/0/107 bridge VT8237/8251 Ultra VLINK Controller
Linux PT890T-A3 3.2.0-23-generic #36-Ubuntu SMP Tue Apr 10 20:39:51 UTC 2012 x86_64 x86_64 x86_64 GNU/Linux
[ 0.000000] found SMP MP-table at [ffff8800000ff780] ff780
[ 0.000000] No NUMA configuration found
[ 0.232091] ACPI: No dock devices found.
[ 0.232096] HEST: Table not found.
[ 0.247208] i2c-core: driver [aat2870] using legacy suspend method
[ 0.247211] i2c-core: driver [aat2870] using legacy resume method
[ 0.247502] usbcore: registered new interface driver usbfs
[ 0.247517] usbcore: registered new interface driver hub
[ 0.247559] usbcore: registered new device driver usb
[ 0.278497] pnp: PnP ACPI: found 15 devices
[ 0.285649] Switching to clocksource acpi_pm
[ 0.360358] ERST: Table is not found!
[ 0.660200] hub 1-0:1.0: USB hub found
[ 0.660617] hub 2-0:1.0: USB hub found
[ 0.660980] hub 3-0:1.0: USB hub found
[ 0.661319] hub 4-0:1.0: USB hub found
[ 0.661665] hub 5-0:1.0: USB hub found
[ 0.661805] usbcore: registered new interface driver libusual
[ 0.681804] BIOS EDD facility v0.16 2004-Jun-25, 0 devices found
[ 0.827410] via-rhine 0000:00:12.0: eth0: VIA Rhine II at 0xfebff800, 00:19:21:8b:e2:59, IRQ 23
[ 0.828133] via-rhine 0000:00:12.0: eth0: MII PHY found at address 1, status 0x786d advertising 05e1 Link cde1
[ 1.268027] usb 2-2: new low-speed USB device number 2 using uhci_hcd
[ 1.320030] Switching to clocksource tsc
[ 1.594911] input: Logitech USB Optical Mouse as /devices/
[ 1.595240] generic-usb 0003:046D:
[ 1.595276] usbcore: registered new interface driver usbhid
[ 1.595280] usbhid: USB HID core driver
[ 1.692020] usb 3-2: new full-speed USB device number 2 using uhci_hcd
[ 1.870907] hub 3-2:1.0: USB hub found
[ 2.153899] usb 3-2.1: new full-speed USB device number 3 using uhci_hcd
[ 2.301343] input: HP Multimedia Keyboard Hub as /devices/
[ 2.301490] generic-usb 0003:03F0:
[ 2.308984] input: HP Multimedia Keyboard Hub as /devices/
[ 2.309191] generic-usb 0003:03F0:
[ 17.998990] ADDRCONF(
[ 18.097440] lp: driver loaded but no devices found
[ 18.420330] rt2800pci 0000:05:05.0: PCI INT A -> GSI 18 (level, low) -> IRQ 18
[ 18.737760] Registered led device: rt2800pci-
[ 18.737786] Registered led device: rt2800pci-
[ 18.737814] Registered led device: rt2800pci-
[ 21.352249] via-rhine 0000:00:12.0: eth0: link up, 100Mbps, full-duplex, lpa 0xCDE1
[ 21.422149] phy0 -> rt2x00pci_
[ 21.443977] phy0 -> rt2x00pci_
[ 21.463994] phy0 -> rt2800pci_
[ 21.512170] phy0 -> rt2800pci_
[ 21.518836] ADDRCONF(
[ 21.520682] ADDRCONF(
[ 24.724046] wlan0: authenticate with 48:5b:39:e7:ca:bb (try 1)
[ 24.725472] wlan0: authenticated
[ 24.740035] wlan0: associate with 48:5b:39:e7:ca:bb (try 1)
[ 24.742857] wlan0: RX AssocResp from 48:5b:39:e7:ca:bb (capab=0x411 status=0 aid=1)
[ 24.742861] wlan0: associated
[ 24.752337] ADDRCONF(
[ 31.736008] eth0: no IPv6 routers present
[ 34.848037] wlan0: no IPv6 routers present
[ 51.936526] type=1400 audit(133717891
[ 51.982540] type=1400 audit(133717891
Release Date: 12/22/2006
Serial services are supported (int 14h)
Manufacturer: ECS
Product Name: PT890T-A
Serial Number: 00000000
Manufacturer: ECS
Product Name: PT890T-A
Serial Number: 00000000
Manufacturer: ECS
Serial Number: 00000000
Manufacturer: Intel
Serial Number: To Be Filled By O.E.M.
Port Type: Serial Port 16550A Compatible
Manufacturer: Manufacturer0
Serial Number: SerNum0
Manufacturer: Manufacturer1
Serial Number: SerNum1
lo no wireless extensions.
wlan0 IEEE 802.11bgn ESSID:"
Bit Rate=115.6 Mb/s Tx-Power=20 dBm
Retry long limit:7 RTS thr:off Fragment thr:off
Power Management:off
Link Quality=61/70 Signal level=-49 dBm
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:22 Invalid misc:69 Missed beacon:0
eth0 no wireless extensions.
install snd-rawmidi /sbin/modprobe --ignore-install snd-rawmidi $CMDLINE_OPTS && { /sbin/modprobe --quiet --use-blacklist snd-seq-midi ; : ; }
# which ath5k cannot recover. To prevent this condition, stop
blacklist ath_pci
blacklist eth1394
# replaced by p54pci
blacklist prism54
# replaced by b43 and ssb.
blacklist bcm43xx
blacklist uart6850
blacklist twl4030_wdt
[main]
NetworkingEnabl
WirelessEnabled
WWANEnabled=true
WimaxEnabled=true
> hal.1: read hal dataprocess 3338: arguments to dbus_move_error() were incorrect, assertion "(dest) == NULL || !dbus_error_is_set ((dest))" failed in file ../../dbus/
This is normally a bug in some application using the D-Bus library.
libhal.c 3483 : Error unsubscribing to signals, error=The name org.freedesktop.Hal was not provided by any .service files
30: PCI 12.0: 0200 Ethernet controller
[Created at pci.318]
Unique ID: rBUF.gHuLrX6AO7A
SysFS ID: /devices/
SysFS BusID: 0000:00:12.0
Hardware Class: network
Model: "VIA VT6102 [Rhine-II]"
Vendor: pci 0x1106 "VIA Technologies, Inc."
Device: pci 0x3065 "VT6102 [Rhine-II]"
SubVendor: pci 0x1019 "Elitegroup Computer Systems"
SubDevice: pci 0x0102
Revision: 0x7c
Driver: "via-rhine"
Driver Modules: "via_rhine"
Device File: eth0
I/O Ports: 0xd000-0xd0ff (rw)
Memory Range: 0xfebff800-
IRQ: 23 (71345 events)
HW Address: 00:19:21:8b:e2:59
Link detected: yes
Module Alias: "pci:v00001106d
Driver Info #0:
Driver Status: via-rhine is active
Driver Activation Cmd: "modprobe via-rhine"
Config Status: cfg=new, avail=yes, need=no, active=unknown
36: PCI 505.0: 0282 WLAN controller
[Created at pci.318]
Unique ID: y9sn.Oq2v4Jb56VC
Parent ID: 9n5e.0ac33UBOJND
SysFS ID: /devices/
SysFS BusID: 0000:05:05.0
Hardware Class: network
Model: "RaLink RT2800 802.11n PCI"
Vendor: pci 0x1814 "RaLink"
Device: pci 0x0601 "RT2800 802.11n PCI"
SubVendor: pci 0x1948
SubDevice: pci 0x3c88
Driver: "rt2800pci"
Driver Modules: "rt2800pci"
Device File: wlan0
Features: WLAN
Memory Range: 0xfeaf0000-
IRQ: 18 (248146 events)
HW Address: 00:18:02:60:8a:44
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: "pci:v00001814d
Driver Info #0:
Driver Status: rt2800pci is active
Driver Activation Cmd: "modprobe rt2800pci"
Config Status: cfg=new, avail=yes, need=no, active=unknown
Attached to: #32 (PCI bridge)
Warning: bad ps syntax, perhaps a bogus '-'? See http://
root 938 0.0 0.3 249320 6232 ? Ssl 07:34 0:00 NetworkManager
root 1052 0.0 0.0 7256 1560 ? S 07:34 0:00 /sbin/dhclient -d -4 -sf /usr/lib/
root 1061 0.0 0.1 31692 2320 ? Ss 07:34 0:00 /sbin/wpa_
root 1349 0.0 0.0 7256 1584 ? S 07:34 0:00 /sbin/dhclient -d -4 -sf /usr/lib/
nobody 1481 0.0 0.0 33012 1292 ? S 07:34 0:00 /usr/sbin/dnsmasq --no-resolv --keep-
root 3352 0.0 0.0 13576 924 pts/0 S+ 09:41 0:00 egrep --color=auto wpa|icd|etwork
Module Size Used by
des_generic 21415 0
md4 12595 0
nls_utf8 12557 2
cifs 287273 4
rfcomm 47604 0
bnep 18281 2
bluetooth 180104 10 rfcomm,bnep
snd_hda_codec_via 51398 1
snd_hda_intel 33773 2
snd_hda_codec 127706 2 snd_hda_
snd_hwdep 13668 1 snd_hda_codec
snd_pcm 97188 2 snd_hda_
snd_seq_midi 13324 0
snd_rawmidi 30748 1 snd_seq_midi
arc4 12529 2
nvidia 12319264 40
ppdev 17113 0
snd_seq_midi_event 14899 1 snd_seq_midi
snd_seq 61896 2 snd_seq_
snd_timer 29990 2 snd_pcm,snd_seq
snd_seq_device 14540 3 snd_seq_
rt2800pci 18715 0
psmouse 87603 0
joydev 17693 0
rt2800lib 58925 1 rt2800pci
crc_ccitt 12667 1 rt2800lib
rt2x00pci 14577 1 rt2800pci
rt2x00lib 55301 3 rt2800pci,
mac80211 506816 3 rt2800lib,
serio_raw 13211 0
snd 78855 13 snd_hda_
cfg80211 205544 2 rt2x00lib,mac80211
eeprom_93cx6 12725 1 rt2800pci
soundcore 15091 1 snd
snd_page_alloc 18529 2 snd_hda_
i2c_viapro 13153 0
shpchp 37277 0
parport_pc 32866 1
mac_hid 13253 0
lp 17799 0
parport 46562 3 ppdev,parport_pc,lp
usbhid 47199 0
hid 99559 1 usbhid
floppy 70365 0
via_rhine 32192 0
pata_via 13701 5
sata_via 13799 3
root@PT890T-A3:~#
|
Revision history for this message
|
#3 |
Your Terminal output shows the following issues:
issue 1) wlan0 Scan completed :
Cell 01 - Address: 48:5B:39:E7:CA:BB
Cell 02 - Address: 00:1F:33:F7:02:DA
To avoid wireless interference on channel 6, please log into the wireless router and change the wireless transmission channel from channel 6 to channel 3.
issue 2) wlan0 IEEE 802.11bgn ESSID:"
Bit Rate=115.6 Mb/s Tx-Power=20 dBm
Your wireless connection is probably unstable, because the bit speed of 115.6 Mb/s is too high for the rt2800pci driver to handle.
Please also log into the wireless router and force the router to use Wireless-G (54 Mb/s) speeds.
Then retest wireless.
|
Revision history for this message
|
#4 |
Mark,
Thank you very much for your input. YOUR TWO SUGGESTIONS APPEAR TO HAVE SOLVED MY PROBLEM. My "test" email was sent twice successfully and my 1.8 GB test file was copied to the NAS twice successfully. The NAS copies took 10 Min. 40 Sec. ea.
Is there a way to limit the Ubuntu 12.04 computers to 54 Mbps and restore wireless 'N' to the rest of my network?
Below is the condensed terminal output after my sucessful tests:
wlan0 Scan completed :
Cell 01 - Address: 48:5B:39:E7:CA:BB
Cell 02 - Address: C4:3D:C7:70:C4:5C
Cell 03 - Address: B8:A3:86:E6:70:51
Cell 04 - Address: 00:1C:10:0C:A1:C8
Cell 05 - Address: 00:1F:33:4B:8A:66
Cell 06 - Address: 00:24:B2:29:1C:C6
wlan0 IEEE 802.11bgn ESSID:"
Bit Rate=54 Mb/s Tx-Power=20 dBm
|
Revision history for this message
|
#5 |
Thanks Mark Rijckenberg, that solved my question.
