Comment 48 for bug 201225

Rogerborg wrote:

Just open a terminal and type in sudo su
type in administrator password,
then type in iwconfig wlan0 rate 54M and that will connect you at 54M/bs
> Problem still extant in 9.04 2.6.28-15 with the rt2500pci driver.
>
> $ uname -a
> Linux reliant 2.6.28-15-generic #49-Ubuntu SMP Tue Aug 18 19:25:34 UTC 2009 x86_64 GNU/Linux
>
> $ dmesg | grep wlan0
> [ 37.832962] ADDRCONF(NETDEV_UP): wlan0: link is not ready
> [ 53.860368] wlan0: direct probe to AP 00:13:d3:7f:18:2f try 1
> [ 53.862350] wlan0 direct probe responded
> [ 53.862356] wlan0: authenticate with AP 00:13:d3:7f:18:2f
> [ 53.864016] wlan0: authenticated
> [ 53.864019] wlan0: associate with AP 00:13:d3:7f:18:2f
> [ 53.866591] wlan0: RX AssocResp from 00:13:d3:7f:18:2f (capab=0x431 status=0 aid=1)
> [ 53.866593] wlan0: associated
> [ 53.867089] ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
> [ 64.172022] wlan0: no IPv6 routers present
>
> $ sudo lspci -vv
> ...
> 02:01.0 Network controller: RaLink RT2500 802.11g Cardbus/mini-PCI (rev 01)
> Subsystem: Belkin Device 700a
> Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV+ VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
> Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=slow >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
> Latency: 64, Cache Line Size: 64 bytes
> Interrupt: pin A routed to IRQ 21
> Region 0: Memory at fddfc000 (32-bit, non-prefetchable) [size=8K]
> Capabilities: [40] Power Management version 2
> Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-)
> Status: D0 PME-Enable- DSel=0 DScale=0 PME-
> Kernel driver in use: rt2500pci
> Kernel modules: rt2500pci
> ...
>
> $ iwconfig wlan0
> wlan0 IEEE 802.11bg ESSID:"Angband-NAT"
> Mode:Managed Frequency:2.462 GHz Access Point: 00:13:D3:7F:18:2F
> Bit Rate=1 Mb/s Tx-Power=20 dBm
> Retry min limit:7 RTS thr:off Fragment thr=2352 B
> Power Management:on
> Link Quality=70/100 Signal level:-55 dBm
> Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
> Tx excessive retries:0 Invalid misc:0 Missed beacon:0
>
> $ sudo iwconfig wlan0 rate 54M
> $ sleep 5
> $ iwconfig wlan0
> wlan0 IEEE 802.11bg ESSID:"Angband-NAT"
> Mode:Managed Frequency:2.462 GHz Access Point: 00:13:D3:7F:18:2F
> Bit Rate=54 Mb/s Tx-Power=20 dBm
> Retry min limit:7 RTS thr:off Fragment thr=2352 B
> Power Management:on
> Link Quality=70/100 Signal level:-56 dBm
> Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
> Tx excessive retries:0 Invalid misc:0 Missed beacon:0
>
> $ sudo iwconfig wlan0 rate auto
> $ sleep 5
> $ iwconfig wlan0
> wlan0 IEEE 802.11bg ESSID:"Angband-NAT"
> Mode:Managed Frequency:2.462 GHz Access Point: 00:13:D3:7F:18:2F
> Bit Rate=1 Mb/s Tx-Power=20 dBm
> Retry min limit:7 RTS thr:off Fragment thr=2352 B
> Power Management:on
> Link Quality=50/100 Signal level:-57 dBm
> Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
> Tx excessive retries:0 Invalid misc:0 Missed beacon:0
>
>