RaLink 3090 unstable wireless connection

[tgntrr]

Recently I moved from Windows, and since I installed a Linux distro(I'm using Xubuntu 13.10) my wireless connection is uncommonly slow (~50kb/s from ~2mb/s). I got no problems using wired Internet from the same router. I've read about alot of possible issues around the web the past couple of days, i tried disabling ipv6 and n connection, wicd, edited nsswitch.conf, did wlan0 power off, got rt2800 firmware pack(i think that here is the problem, no fix found tho), checked blacklist, modified channel and dns and etc.
What i got is, that every time i connect to my wireless network my internet is good for the first 1-2 minutes, then it drops. I think that this would explain the problem to a person, that is into network and wireless.
Thanks!

[tfrue]

Would you be so kind to post the output of:

sudo lshw -C network
lspci | grep Network
and 
sudo nm-tool

Thanks,
Chris

[tgntrr]

here it is

sudo lshow -C network     *-network               
       description: Ethernet interface
       product: AR8152 v2.0 Fast Ethernet
       vendor: Qualcomm Atheros
       physical id: 0
       bus info: pci@0000:01:00.0
       logical name: eth0
       version: c1
       serial: dc:0e:a1:5e:b6:cf
       size: 10Mbit/s
       capacity: 100Mbit/s
       width: 64 bits
       clock: 33MHz
       capabilities: pm msi pciexpress vpd bus_master cap_list ethernet physical tp 10bt 10bt-fd 100bt 100bt-fd autonegotiation
       configuration: autonegotiation=on broadcast=yes driver=atl1c driverversion=1.0.1.1-NAPI duplex=half latency=0 link=no multicast=yes port=twisted pair speed=10Mbit/s
       resources: irq:44 memory:d0500000-d053ffff ioport:2000(size=128)
  *-network
       description: Wireless interface
       product: RT3090 Wireless 802.11n 1T/1R PCIe
       vendor: Ralink corp.
       physical id: 0
       bus info: pci@0000:02:00.0
       logical name: wlan0
       version: 00
       serial: 94:39:e5:87:68:7e
       width: 32 bits
       clock: 33MHz
       capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless
       configuration: broadcast=yes driver=rt2800pci driverversion=3.12.0-031200-generic firmware=0.34 ip=172.16.1.100 latency=0 link=yes multicast=yes wireless=IEEE 802.11bgn
       resources: irq:17 memory:d0400000-d040ffff

lspci | grep Network
02:00.0 Network controller: Ralink corp. RT3090 Wireless 802.11n 1T/1R PCIe

sudo nm-tool
State: connected (global)


- Device: wlan0  [Tugg] --------------------------------------------------------
  Type:              802.11 WiFi
  Driver:            rt2800pci
  State:             connected
  Default:           yes
  HW Address:        94:39:E5:87:68:7E


  Capabilities:
    Speed:           150 Mb/s


  Wireless Properties
    WEP Encryption:  yes
    WPA Encryption:  yes
    WPA2 Encryption: yes


  Wireless Access Points (* = current AP)
    varbanov701012:  Infra, 64:70:02:EB:CF:CA, Freq 2437 MHz, Rate 54 Mb/s, Strength 62 WPA2
    Sladko i Soleno: Infra, 90:F6:52:E8:A4:68, Freq 2412 MHz, Rate 54 Mb/s, Strength 59 WPA WPA2
    IVO:             Infra, 00:25:86:CF:79:C6, Freq 2427 MHz, Rate 54 Mb/s, Strength 55 WPA
    ivanov:          Infra, C8:D3:A3:4F:13:44, Freq 2472 MHz, Rate 54 Mb/s, Strength 59 WPA WPA2
    Richi:           Infra, 64:66:B3:D3:2E:C0, Freq 2437 MHz, Rate 54 Mb/s, Strength 52 WPA2
    10lv/mesec:      Infra, 00:26:5A:B2:18:42, Freq 2457 MHz, Rate 54 Mb/s, Strength 49 WPA WPA2
    zuzka:           Infra, F8:D1:11:64:E0:E8, Freq 2412 MHz, Rate 54 Mb/s, Strength 45 WPA WPA2
    *Tugg:           Infra, 64:66:B3:F7:7D:BA, Freq 2437 MHz, Rate 54 Mb/s, Strength 100 WPA2
    BDK WIFI:        Infra, 64:70:02:3D:31:2C, Freq 2442 MHz, Rate 54 Mb/s, Strength 85 WPA WPA2
    www.networx-bg.com: Infra, 62:66:B3:F7:7D:BA, Freq 2437 MHz, Rate 54 Mb/s, Strength 100
    www.networx-bg.com: Infra, 62:70:02:EB:CF:CA, Freq 2437 MHz, Rate 54 Mb/s, Strength 65
    www.networx-bg.com: Infra, 00:18:39:D4:2E:3D, Freq 2437 MHz, Rate 54 Mb/s, Strength 55
    www.networx-bg.com: Infra, 62:66:B3:D3:2E:C0, Freq 2437 MHz, Rate 54 Mb/s, Strength 55
    MITAKA:          Infra, 64:68:0C:26:74:F7, Freq 2422 MHz, Rate 54 Mb/s, Strength 45 WPA
    tneuf:           Infra, F8:1A:67:3F:53:32, Freq 2442 MHz, Rate 54 Mb/s, Strength 62 WPA2
    www.networx-bg.com: Infra, FA:1A:67:3F:53:32, Freq 2442 MHz, Rate 54 Mb/s, Strength 69
    sintra-home:     Infra, B0:48:7A:CE:74:04, Freq 2412 MHz, Rate 54 Mb/s, Strength 45 WPA2
    www.networx-bg.com: Infra, 00:12:0E:B5:B3:A6, Freq 2462 MHz, Rate 54 Mb/s, Strength 45
    www.networx-bg.com-05: Infra, B6:48:7A:CE:83:7A, Freq 2457 MHz, Rate 54 Mb/s, Strength 42
    hpsetup:         Ad-Hoc, AA:25:B3:92:3D:C5, Freq 2437 MHz, Rate 54 Mb/s, Strength 32


  IPv4 Settings:
    Address:         172.16.1.100
    Prefix:          24 (255.255.255.0)
    Gateway:         172.16.1.1


    DNS:             212.25.58.2
    DNS:             212.25.58.8




- Device: eth0 -----------------------------------------------------------------
  Type:              Wired
  Driver:            atl1c
  State:             unavailable
  Default:           no
  HW Address:        DC:0E:A1:5E:B6:CF


  Capabilities:
    Carrier Detect:  yes


  Wired Properties
    Carrier:         off

[varunendra]

Hello tgntrr,

Please follow the advice in this thread : http://ubuntuforums.org/showthread.php?t=2195144

If it doesn't help, please follow the "Wireless Script" link in my signature, download and run the script as per instructions in the linked post, and post back the report it generates.