disconnecting wireless & slow internet, ralink (rt 3090), ubuntu 11.04 on msi cr620

[TheJellyBean]

Hi
After putting ubuntu 11.04 on my laptop (msi cr620) the wireless will randomly disconnect and then will not reconnect unless you restart it or put it on standby and start it again. Once connected it is very slow to load up pages, even google (I have tried using fedora and it was a lot faster it just seems to be ubuntu).

05:00.0 Network controller: Ralink corp. RT3090 Wireless 802.11n 1T/1R PCIeiwconfig
lo        no wireless extensions.

wlan0     IEEE 802.11bgn  ESSID:"satyam"  
          Mode:Managed  Frequency:2.437 GHz  Access Point: F0:7D:68:40:DB:6E   
          Bit Rate=45 Mb/s   Tx-Power=20 dBm   
          Retry  long limit:7   RTS thr:off   Fragment thr:off
          Power Management:on
          Link Quality=53/70  Signal level=-57 dBm  
          Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
          Tx excessive retries:219  Invalid misc:20   Missed beacon:0

sudo lshw -C network
[sudo] password for step: 
PCI (sysfs)  
  *-network               
       description: Wireless interface
       product: RT3090 Wireless 802.11n 1T/1R PCIe
       vendor: Ralink corp.
       physical id: 0
       bus info: pci@0000:05:00.0
       logical name: wlan0
       version: 00
       serial: 6c:62:6d:1b:e2:98
       width: 32 bits
       clock: 33MHz
       capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless
       configuration: broadcast=yes driver=rt2800pci driverversion=2.6.38-8-generic firmware=0.11 ip=192.168.0.109 latency=0 link=yes multicast=yes wireless=IEEE 802.11bgn
       resources: irq:19 memory:f4000000-f400ffff

I'm a newbie at this so I don't know how much of the above is helpful but if anyone can help I would really appreciate it.
Thanks
Steph

[jubberz]

I'm having the exact same problem Switched back to 10.10 for the time being. I'm pretty new to Ubuntu too so any help would be appreciated!

[frogpr]

Had exactly the same problems, ralink 3090 almost unusable in 11.04. Have an HP ProBook 4520s with ralink 3090 wifi.
Solved it by blacklisting ALL rt drivers (i.e. rt2x00lib,rt2800pci,rt2x00usb,rt2x00pci,rt3390sta) EXCEPT rt2860sta.

You need to add these drivers at the end of /etc/modprobe.d/blacklist.conf.

The rt2860sta works flawlessly, fast and stable (not a single disconnect so far), suspend and resume work as well.

Cheers

[apeetso]

Umh, I use Asus K50IN series laptop and my network keeps disconnecting and not reconnecting aswell.
If what you, frogpr, said really works, then could you maybe write down what it is that I have to do (or anyone else), in more detail, because really I'm new to the whole scene and have no clue how to do these things.

Thank you in advance.

[chili555]

Umh, I use Asus K50IN series laptop and my network keeps disconnecting and not reconnecting aswell.
If what you, frogpr, said really works, then could you maybe write down what it is that I have to do (or anyone else), in more detail, because really I'm new to the whole scene and have no clue how to do these things.

Thank you in advance.

It depends on your wireless card. Please post:

lspci -nn

We'll be in a better position to proceed once we see the result.

[apeetso]

This is what it says:

00:00.0 Host bridge [0600]: nVidia Corporation MCP79 Host Bridge [10de:0a83] (rev b1)
00:00.1 RAM memory [0500]: nVidia Corporation MCP79 Memory Controller [10de:0a88] (rev b1)
00:03.0 ISA bridge [0601]: nVidia Corporation MCP79 LPC Bridge [10de:0aae] (rev b3)
00:03.1 RAM memory [0500]: nVidia Corporation MCP79 Memory Controller [10de:0aa4] (rev b1)
00:03.2 SMBus [0c05]: nVidia Corporation MCP79 SMBus [10de:0aa2] (rev b1)
00:03.3 RAM memory [0500]: nVidia Corporation MCP79 Memory Controller [10de:0a89] (rev b1)
00:03.5 Co-processor [0b40]: nVidia Corporation MCP79 Co-processor [10de:0aa3] (rev b1)
00:04.0 USB Controller [0c03]: nVidia Corporation MCP79 OHCI USB 1.1 Controller [10de:0aa5] (rev b1)
00:04.1 USB Controller [0c03]: nVidia Corporation MCP79 EHCI USB 2.0 Controller [10de:0aa6] (rev b1)
00:08.0 Audio device [0403]: nVidia Corporation MCP79 High Definition Audio [10de:0ac0] (rev b1)
00:09.0 PCI bridge [0604]: nVidia Corporation MCP79 PCI Bridge [10de:0aab] (rev b1)
00:0b.0 SATA controller [0106]: nVidia Corporation MCP79 AHCI Controller [10de:0ab9] (rev b1)
00:0c.0 PCI bridge [0604]: nVidia Corporation MCP79 PCI Express Bridge [10de:0ac4] (rev b1)
00:10.0 PCI bridge [0604]: nVidia Corporation MCP79 PCI Express Bridge [10de:0aa0] (rev b1)
00:15.0 PCI bridge [0604]: nVidia Corporation MCP79 PCI Express Bridge [10de:0ac6] (rev b1)
00:16.0 PCI bridge [0604]: nVidia Corporation MCP79 PCI Express Bridge [10de:0ac7] (rev b1)
03:00.0 VGA compatible controller [0300]: nVidia Corporation C79 [GeForce G102M] [10de:0873] (rev b1)
04:00.0 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd.  RTL8111/8168B PCI Express Gigabit Ethernet controller [10ec:8168] (rev  01)
05:00.0 Network controller [0280]: Atheros Communications Inc. AR9285  Wireless Network Adapter (PCI-Express) [168c:002b] (rev 01)

[chili555]

You have an Atheros card; you have nothing in common with the title of this thread aside from disconnects. I suggest you search this forum for 'ath9k disconnects' and, if you can't find a solution, start a new thread.

[apeetso]

Okay, I will, thank you!

[Arsic]

Had exactly the same problems, ralink 3090 almost unusable in 11.04. Have an HP ProBook 4520s with ralink 3090 wifi.
Solved it by blacklisting ALL rt drivers (i.e. rt2x00lib,rt2800pci,rt2x00usb,rt2x00pci,rt3390sta) EXCEPT rt2860sta.

You need to add these drivers at the end of /etc/modprobe.d/blacklist.conf.

The rt2860sta works flawlessly, fast and stable (not a single disconnect so far), suspend and resume work as well.

Cheers

So now my rt3090 is using rt2860sta drivers as shown by sudo lshw -C network and iwconfig. Still looking for disconnects, but the biggest problem is now it's not running at 802.11n speeds. iwconfig shows 54 Mb/s.

Edit: yeah I'm still getting disconnects. I started this netbook off with 10.10 and the problem was pretty much the same. Had to do sudo /etc/init.d/networking restart && sudo service network-manager restart as a temporary fix, but it tends to disconnect more often after that.

Seems to be all right when on WPA2-AES. WPA2-TKIP was the one giving it problems.

[davidcmc]

Had exactly the same problems, ralink 3090 almost unusable in 11.04. Have an HP ProBook 4520s with ralink 3090 wifi.
Solved it by blacklisting ALL rt drivers (i.e. rt2x00lib,rt2800pci,rt2x00usb,rt2x00pci,rt3390sta) EXCEPT rt2860sta.

You need to add these drivers at the end of /etc/modprobe.d/blacklist.conf.

The rt2860sta works flawlessly, fast and stable (not a single disconnect so far), suspend and resume work as well.

Cheers

I'd just like to say THANK YOU.
Me and my sister (each one) have an Asus 1015 PEM.
Mine has an Atheros chip, while her netbook has a Ralink chip.
After updating Ubuntu to 11.04, my netbook continued to work perfectly, while her netbook started to show problems in wireless (the same as topic author).

I've just blacklisted those drivers in her netbook and, at least until now, wireless is working perfectly again!
Ubuntu 11.04 is using RT2860STA driver in her netbook, according to iwconfig.

Thank you, again.