Comment 1 for bug 150180

I just upgraded to Gutsy, and my network connection now times out regularly, at irregular intervals. I can bring it up again using:

$ sudo ifdown ra0
$ sudo ifup ra0

But it is guaranteed to fail again shortly. Very annoying. I have an rt2500 chipset. Output of lspci, lsmod, and dmesg below.

$ lspci (full output)
00:00.0 Host bridge: Silicon Integrated Systems [SiS] 760/M760 Host (rev 03)
00:01.0 PCI bridge: Silicon Integrated Systems [SiS] SG86C202
00:02.0 ISA bridge: Silicon Integrated Systems [SiS] SiS964 [MuTIOL Media IO] (rev 36)
00:02.5 IDE interface: Silicon Integrated Systems [SiS] 5513 [IDE] (rev 01)
00:02.7 Multimedia audio controller: Silicon Integrated Systems [SiS] AC'97 Sound Controller (rev a0)
00:03.0 USB Controller: Silicon Integrated Systems [SiS] USB 1.0 Controller (rev 0f)
00:03.1 USB Controller: Silicon Integrated Systems [SiS] USB 1.0 Controller (rev 0f)
00:03.2 USB Controller: Silicon Integrated Systems [SiS] USB 1.0 Controller (rev 0f)
00:03.3 USB Controller: Silicon Integrated Systems [SiS] USB 2.0 Controller
00:05.0 IDE interface: Silicon Integrated Systems [SiS] RAID bus controller 180 SATA/PATA [SiS] (rev 01)
00:09.0 Network controller: RaLink RT2500 802.11g Cardbus/mini-PCI (rev 01)
00:0d.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL-8139/8139C/8139C+ (rev 10)
00:18.0 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] HyperTransport Technology Configuration
00:18.1 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] Address Map
00:18.2 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] DRAM Controller
00:18.3 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] Miscellaneous Control
01:00.0 VGA compatible controller: nVidia Corporation NV25 [GeForce4 Ti 4200] (rev a3)

$ lsmod | grep rt2 (full output, without the pipe, attached)
rt2500pci 19072 0
rt2x00pci 11520 1 rt2500pci
rt2x00lib 19584 2 rt2500pci,rt2x00pci
rfkill 8208 1 rt2x00lib
mac80211 171016 4 rc80211_simple,rt2500pci,rt2x00pci,rt2x00lib
input_polldev 5896 1 rt2x00lib
crc_itu_t 3072 1 rt2x00lib
eeprom_93cx6 3200 1 rt2500pci

$ dmesg (just a snippet, full output attached)
[74082.964000] ra0: authenticated
[74082.964000] ra0: associate with AP 00:13:46:1e:82:22
[74083.164000] ra0: associate with AP 00:13:46:1e:82:22
[74083.164000] ra0: RX AssocResp from 00:13:46:1e:82:22 (capab=0x31 status=0 aid=46)
[74083.164000] ra0: associated
[74083.164000] ADDRCONF(NETDEV_CHANGE): ra0: link becomes ready
[74083.168000] ra0: RX disassociation from 00:13:46:1e:82:22 (reason=1)
[74083.168000] ra0: disassociated
[74083.176000] ra0: RX deauthentication from 00:13:46:1e:82:22 (reason=7)
[74083.176000] ra0: deauthenticated
[74083.292000] ra0: RX deauthentication from 00:13:46:1e:82:22 (reason=7)
[74084.292000] ra0: authenticate with AP 00:13:46:1e:82:22
[74084.292000] ra0: RX authentication from 00:13:46:1e:82:22 (alg=0 transaction=2 status=0)
[74084.292000] ra0: authenticated
[74084.292000] ra0: associate with AP 00:13:46:1e:82:22
[74084.300000] ra0: RX ReassocResp from 00:13:46:1e:82:22 (capab=0x31 status=0 aid=46)
[74084.300000] ra0: associated
[74093.284000] ra0: no IPv6 routers present
[75128.300000] ra0: No ProbeResp from current AP 00:13:46:1e:82:22 - assume out of range
[75160.300000] ra0: No STA entry for own AP 00:13:46:1e:82:22
[75192.300000] ra0: No STA entry for own AP 00:13:46:1e:82:22
[75224.300000] ra0: No STA entry for own AP 00:13:46:1e:82:22
[75256.300000] ra0: No STA entry for own AP 00:13:46:1e:82:22
[75265.764000] ADDRCONF(NETDEV_UP): ra0: link is not ready
[75266.520000] ra0: Initial auth_alg=0
[75266.520000] ra0: authenticate with AP 00:13:46:1e:82:22
[75266.528000] ra0: RX authentication from 00:13:46:1e:82:22 (alg=0 transaction=2 status=0)
[75266.528000] ra0: authenticated
[75266.528000] ra0: associate with AP 00:13:46:1e:82:22
[75266.544000] ra0: RX AssocResp from 00:13:46:1e:82:22 (capab=0x31 status=0 aid=46)
[75266.544000] ra0: associated
[75266.544000] ADDRCONF(NETDEV_CHANGE): ra0: link becomes ready
[75267.788000] ra0: duplicate address detected!
[75267.788000] ra0: duplicate address detected!
[76174.544000] ra0: No ProbeResp from current AP 00:13:46:1e:82:22 - assume out of range
[76206.544000] ra0: No STA entry for own AP 00:13:46:1e:82:22
[76238.544000] ra0: No STA entry for own AP 00:13:46:1e:82:22
[76270.544000] ra0: No STA entry for own AP 00:13:46:1e:82:22
[76302.544000] ra0: No STA entry for own AP 00:13:46:1e:82:22
[76334.544000] ra0: No STA entry for own AP 00:13:46:1e:82:22
[76366.544000] ra0: No STA entry for own AP 00:13:46:1e:82:22
[76398.544000] ra0: No STA entry for own AP 00:13:46:1e:82:22
[76430.544000] ra0: No STA entry for own AP 00:13:46:1e:82:22
[76462.544000] ra0: No STA entry for own AP 00:13:46:1e:82:22
[76494.544000] ra0: No STA entry for own AP 00:13:46:1e:82:22
[76526.544000] ra0: No STA entry for own AP 00:13:46:1e:82:22
[76558.544000] ra0: No STA entry for own AP 00:13:46:1e:82:22
[76590.544000] ra0: No STA entry for own AP 00:13:46:1e:82:22
[76622.544000] ra0: No STA entry for own AP 00:13:46:1e:82:22
[76654.544000] ra0: No STA entry for own AP 00:13:46:1e:82:22
[76686.544000] ra0: No STA entry for own AP 00:13:46:1e:82:22
[76718.544000] ra0: No STA entry for own AP 00:13:46:1e:82:22
[76750.544000] ra0: No STA entry for own AP 00:13:46:1e:82:22
[76753.208000] ra0: RX deauthentication from 00:13:46:1e:82:22 (reason=2)
[76753.208000] ra0: deauthenticated
[76754.208000] ra0: authenticate with AP 00:13:46:1e:82:22
[76754.228000] ra0: RX authentication from 00:13:46:1e:82:22 (alg=0 transaction=2 status=0)
[76754.228000] ra0: authenticated
[76754.228000] ra0: associate with AP 00:13:46:1e:82:22
[76754.340000] ra0: RX ReassocResp from 00:13:46:1e:82:22 (capab=0x31 status=0 aid=46)
[76754.340000] ra0: associated