Recently upgraded from 11.04 to 11.10 but now whenever I connect to my home network via wifi the router actually locks up. The only work around I've found is to power cycle the router and use a wired connection. Router: Cisco Linksys WRT120N with latest firmware version 1.0.06 Additional hardware information from lshw: description: Portable Computer product: Studio XPS 1640 () vendor: Winbond Electronics version: A103 width: 64 bits capabilities: smbios-2.5 dmi-2.5 vsyscall64 vsyscall32 configuration: administrator_password=disabled boot=normal chassis=portable frontpanel_password=unknown keyboard_password=unknown power-on_password=disabled uuid=44454C4C-3900-1059-8033-C7C04F384B31 *-core description: Motherboard product: 0Y536R vendor: Winbond Electronics physical id: 0 version: A10 serial: .G9Y38K1.CN4864398M0275. *-firmware description: BIOS vendor: Winbond Electronics physical id: 1 version: A10 date: 07/23/2009 size: 113KiB capacity: 1984KiB capabilities: pci pnp upgrade shadowing escd cdboot bootselect socketedrom edd int13floppy360 int13floppy1200 int13floppy720 int5printscreen int9keyboard int14serial int17printer int10video acpi usb ls120boot smartbattery biosbootspecification netboot *-cpu description: CPU product: Intel(R) Core(TM)2 Duo CPU P8600 @ 2.40GHz vendor: Intel Corp. physical id: 5 bus info: cpu@0 version: CPU Version slot: U2E1 size: 800MHz capacity: 800MHz width: 64 bits clock: 1066MHz capabilities: x86-64 fpu fpu_exception wp vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx constant_tsc arch_perfmon pebs bts rep_good nopl aperfmperf pni dtes64 monitor ds_cpl vmx smx est tm2 ssse3 cx16 xtpr pdcm sse4_1 xsave lahf_lm ida tpr_shadow vnmi flexpriority cpufreq configuration: cores=2 enabledcores=2 threads=2 *-cache:0 description: L1 cache physical id: 6 slot: L1 Cache size: 64KiB capacity: 64KiB capabilities: asynchronous internal write-back data *-cache:1 description: L2 cache physical id: 7 slot: L2 Cache size: 3MiB capacity: 3MiB capabilities: burst internal write-back instruction *-memory description: System Memory physical id: 15 slot: System board or motherboard size: 4GiB *-bank:0 description: SODIMM Synchronous 1066 MHz (0.9 ns) product: HMT125S6BFR8C-G7 vendor: Hynix Semiconductor (Hyundai Electronics) physical id: 0 serial: 1E606627 slot: DIMM_A size: 2GiB width: 64 bits clock: 1066MHz (0.9ns) *-bank:1 description: SODIMM Synchronous 1066 MHz (0.9 ns) product: HMT125S6BFR8C-G7 vendor: Hynix Semiconductor (Hyundai Electronics) physical id: 1 serial: 1E206629 slot: DIMM_B size: 2GiB width: 64 bits clock: 1066MHz (0.9ns) *-pci description: Host bridge product: Mobile 4 Series Chipset Memory Controller Hub vendor: Intel Corporation physical id: 100 bus info: pci@0000:00:00.0 version: 07 width: 32 bits clock: 33MHz *-pci:0 description: PCI bridge product: Mobile 4 Series Chipset PCI Express Graphics Port vendor: Intel Corporation physical id: 1 bus info: pci@0000:00:01.0 version: 07 width: 32 bits clock: 33MHz capabilities: pci pm msi pciexpress normal_decode bus_master cap_list configuration: driver=pcieport resources: irq:40 ioport:2000(size=4096) memory:cfe00000-cfefffff ioport:d0000000(size=268435456) *-display description: VGA compatible controller product: ATI Technologies Inc vendor: ATI Technologies Inc physical id: 0 bus info: pci@0000:01:00.0 version: 00 width: 32 bits clock: 33MHz capabilities: pm pciexpress msi vga_controller bus_master cap_list rom configuration: driver=fglrx_pci latency=0 resources: irq:50 memory:d0000000-dfffffff ioport:2000(size=256) memory:cfef0000-cfefffff memory:cfe00000-cfe1ffff *-multimedia description: Audio device product: RV710/730 vendor: ATI Technologies Inc physical id: 0.1 bus info: pci@0000:01:00.1 version: 00 width: 32 bits clock: 33MHz capabilities: pm pciexpress msi bus_master cap_list configuration: driver=HDA Intel latency=0 resources: irq:48 memory:cfeec000-cfeeffff *-usb:0 description: USB Controller product: 82801I (ICH9 Family) USB UHCI Controller #4 vendor: Intel Corporation physical id: 1a bus info: pci@0000:00:1a.0 version: 03 width: 32 bits clock: 33MHz capabilities: uhci bus_master cap_list configuration: driver=uhci_hcd latency=0 resources: irq:16 ioport:1800(size=32) *-usb:1 description: USB Controller product: 82801I (ICH9 Family) USB UHCI Controller #5 vendor: Intel Corporation physical id: 1a.1 bus info: pci@0000:00:1a.1 version: 03 width: 32 bits clock: 33MHz capabilities: uhci bus_master cap_list configuration: driver=uhci_hcd latency=0 resources: irq:21 ioport:1820(size=32) *-usb:2 description: USB Controller product: 82801I (ICH9 Family) USB UHCI Controller #6 vendor: Intel Corporation physical id: 1a.2 bus info: pci@0000:00:1a.2 version: 03 width: 32 bits clock: 33MHz capabilities: uhci bus_master cap_list configuration: driver=uhci_hcd latency=0 resources: irq:19 ioport:1840(size=32) *-usb:3 description: USB Controller product: 82801I (ICH9 Family) USB2 EHCI Controller #2 vendor: Intel Corporation physical id: 1a.7 bus info: pci@0000:00:1a.7 version: 03 width: 32 bits clock: 33MHz capabilities: pm debug ehci bus_master cap_list configuration: driver=ehci_hcd latency=0 resources: irq:19 memory:fc404800-fc404bff *-multimedia description: Audio device product: 82801I (ICH9 Family) HD Audio Controller vendor: Intel Corporation physical id: 1b bus info: pci@0000:00:1b.0 version: 03 width: 64 bits clock: 33MHz capabilities: pm msi pciexpress bus_master cap_list configuration: driver=HDA Intel latency=0 resources: irq:47 memory:fc400000-fc403fff *-pci:1 description: PCI bridge product: 82801I (ICH9 Family) PCI Express Port 1 vendor: Intel Corporation physical id: 1c bus info: pci@0000:00:1c.0 version: 03 width: 32 bits clock: 33MHz capabilities: pci pciexpress msi pm normal_decode bus_master cap_list configuration: driver=pcieport resources: irq:41 ioport:3000(size=4096) memory:f6000000-f7ffffff ioport:f0000000(size=33554432) *-pci:2 description: PCI bridge product: 82801I (ICH9 Family) PCI Express Port 2 vendor: Intel Corporation physical id: 1c.1 bus info: pci@0000:00:1c.1 version: 03 width: 32 bits clock: 33MHz capabilities: pci pciexpress msi pm normal_decode bus_master cap_list configuration: driver=pcieport resources: irq:42 ioport:4000(size=4096) memory:f8000000-f9ffffff ioport:f2000000(size=33554432) *-network DISABLED description: Wireless interface product: Ultimate N WiFi Link 5300 vendor: Intel Corporation physical id: 0 bus info: pci@0000:04:00.0 logical name: wlan0 version: 00 serial: 00:21:6a:6a:20:3e width: 64 bits clock: 33MHz capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless configuration: broadcast=yes driver=iwlagn driverversion=3.0.0-12-generic firmware=8.83.5.1 build 33692 latency=0 link=no multicast=yes wireless=IEEE 802.11abgn resources: irq:46 memory:f8000000-f8001fff *-pci:3 description: PCI bridge product: 82801I (ICH9 Family) PCI Express Port 4 vendor: Intel Corporation physical id: 1c.3 bus info: pci@0000:00:1c.3 version: 03 width: 32 bits clock: 33MHz capabilities: pci pciexpress msi pm normal_decode bus_master cap_list configuration: driver=pcieport resources: irq:43 ioport:5000(size=4096) memory:fa000000-fbffffff ioport:f4000000(size=33554432) *-pci:4 description: PCI bridge product: 82801I (ICH9 Family) PCI Express Port 6 vendor: Intel Corporation physical id: 1c.5 bus info: pci@0000:00:1c.5 version: 03 width: 32 bits clock: 33MHz capabilities: pci pciexpress msi pm normal_decode bus_master cap_list configuration: driver=pcieport resources: irq:44 ioport:6000(size=4096) memory:fc000000-fc0fffff ioport:c0100000(size=2097152) *-network description: Ethernet interface product: NetLink BCM5784M Gigabit Ethernet PCIe vendor: Broadcom Corporation physical id: 0 bus info: pci@0000:08:00.0 logical name: eth0 version: 10 serial: 00:22:19:f9:72:31 size: 100Mbit/s capacity: 1Gbit/s width: 64 bits clock: 33MHz capabilities: pm vpd msi pciexpress bus_master cap_list ethernet physical tp 10bt 10bt-fd 100bt 100bt-fd 1000bt 1000bt-fd autonegotiation configuration: autonegotiation=on broadcast=yes driver=tg3 driverversion=3.119 duplex=full firmware=sb v2.17 ip=192.168.1.102 latency=0 link=yes multicast=yes port=twisted pair speed=100Mbit/s resources: irq:49 memory:fc000000-fc00ffff *-usb:4 description: USB Controller product: 82801I (ICH9 Family) USB UHCI Controller #1 vendor: Intel Corporation physical id: 1d bus info: pci@0000:00:1d.0 version: 03 width: 32 bits clock: 33MHz capabilities: uhci bus_master cap_list configuration: driver=uhci_hcd latency=0 resources: irq:23 ioport:1860(size=32) *-usb:5 description: USB Controller product: 82801I (ICH9 Family) USB UHCI Controller #2 vendor: Intel Corporation physical id: 1d.1 bus info: pci@0000:00:1d.1 version: 03 width: 32 bits clock: 33MHz capabilities: uhci bus_master cap_list configuration: driver=uhci_hcd latency=0 resources: irq:19 ioport:1880(size=32) *-usb:6 description: USB Controller product: 82801I (ICH9 Family) USB UHCI Controller #3 vendor: Intel Corporation physical id: 1d.2 bus info: pci@0000:00:1d.2 version: 03 width: 32 bits clock: 33MHz capabilities: uhci bus_master cap_list configuration: driver=uhci_hcd latency=0 resources: irq:18 ioport:18a0(size=32) *-usb:7 description: USB Controller product: 82801I (ICH9 Family) USB2 EHCI Controller #1 vendor: Intel Corporation physical id: 1d.7 bus info: pci@0000:00:1d.7 version: 03 width: 32 bits clock: 33MHz capabilities: pm debug ehci bus_master cap_list configuration: driver=ehci_hcd latency=0 resources: irq:23 memory:fc404c00-fc404fff *-pci:5 description: PCI bridge product: 82801 Mobile PCI Bridge vendor: Intel Corporation physical id: 1e bus info: pci@0000:00:1e.0 version: 93 width: 32 bits clock: 33MHz capabilities: pci subtractive_decode bus_master cap_list resources: memory:fc100000-fc1fffff *-firewire description: FireWire (IEEE 1394) product: R5C832 IEEE 1394 Controller vendor: Ricoh Co Ltd physical id: 1 bus info: pci@0000:09:01.0 version: 05 width: 32 bits clock: 33MHz capabilities: pm ohci bus_master cap_list configuration: driver=firewire_ohci latency=32 maxlatency=4 mingnt=2 resources: irq:17 memory:fc100000-fc1007ff *-generic:0 description: SD Host controller product: R5C822 SD/SDIO/MMC/MS/MSPro Host Adapter vendor: Ricoh Co Ltd physical id: 1.1 bus info: pci@0000:09:01.1 version: 22 width: 32 bits clock: 33MHz capabilities: pm bus_master cap_list configuration: driver=sdhci-pci latency=64 resources: irq:18 memory:fc100800-fc1008ff *-generic:1 UNCLAIMED description: System peripheral product: R5C592 Memory Stick Bus Host Adapter vendor: Ricoh Co Ltd physical id: 1.2 bus info: pci@0000:09:01.2 version: 12 width: 32 bits clock: 33MHz capabilities: pm bus_master cap_list configuration: latency=64 resources: memory:fc100c00-fc100cff *-generic:2 description: System peripheral product: xD-Picture Card Controller vendor: Ricoh Co Ltd physical id: 1.3 bus info: pci@0000:09:01.3 version: 12 width: 32 bits clock: 33MHz capabilities: pm bus_master cap_list configuration: driver=r852 latency=64 resources: irq:18 memory:fc101000-fc1010ff *-isa description: ISA bridge product: ICH9M LPC Interface Controller vendor: Intel Corporation physical id: 1f bus info: pci@0000:00:1f.0 version: 03 width: 32 bits clock: 33MHz capabilities: isa bus_master cap_list configuration: latency=0 *-storage description: SATA controller product: ICH9M/M-E SATA AHCI Controller vendor: Intel Corporation physical id: 1f.2 bus info: pci@0000:00:1f.2 logical name: scsi0 logical name: scsi1 version: 03 width: 32 bits clock: 66MHz capabilities: storage msi pm ahci_1.0 bus_master cap_list emulated configuration: driver=ahci latency=0 resources: irq:45 ioport:18f0(size=8) ioport:18e4(size=4) ioport:18e8(size=8) ioport:18e0(size=4) ioport:18c0(size=32) memory:fc404000-fc4047ff *-disk description: ATA Disk product: ST9320423ASG vendor: Seagate physical id: 0 bus info: scsi@0:0.0.0 logical name: /dev/sda version: 0002 serial: 5VH07666 size: 298GiB (320GB) capabilities: partitioned partitioned:dos configuration: ansiversion=5 signature=000dd8ce *-volume:0 description: Windows NTFS volume physical id: 1 bus info: scsi@0:0.0.0,1 logical name: /dev/sda1 version: 3.1 serial: 5446-e4c6 size: 98MiB capacity: 100MiB capabilities: primary ntfs initialized configuration: clustersize=4096 created=2010-01-01 18:08:06 filesystem=ntfs label=System Reserved state=clean *-volume:1 description: Windows NTFS volume physical id: 2 bus info: scsi@0:0.0.0,2 logical name: /dev/sda2 version: 3.1 serial: 1c9a73a7-4c43-de45-adcd-975701e5a1e7 size: 97GiB capacity: 97GiB capabilities: primary ntfs initialized configuration: clustersize=4096 created=2010-01-01 18:08:32 filesystem=ntfs state=clean *-volume:2 description: Extended partition physical id: 3 bus info: scsi@0:0.0.0,3 logical name: /dev/sda3 size: 174GiB capacity: 174GiB capabilities: primary extended partitioned partitioned:extended *-logicalvolume:0 description: Linux swap / Solaris partition physical id: 5 logical name: /dev/sda5 capacity: 3920MiB capabilities: nofs *-logicalvolume:1 description: Linux filesystem partition physical id: 6 logical name: /dev/sda6 logical name: [removed by poster] capacity: 151GiB configuration: mount.fstype=ext4 mount.options=rw,relatime,user_xattr,acl,barrier=1,data=ordered state=mounted *-logicalvolume:2 description: Linux filesystem partition physical id: 7 logical name: /dev/sda7 logical name: / capacity: 19GiB configuration: mount.fstype=ext4 mount.options=rw,relatime,errors=remount-ro,user_xattr,acl,barrier=1,data=ordered state=mounted *-cdrom description: DVD-RAM writer product: DVD+-RW TS-T633A vendor: TSSTcorp physical id: 1 bus info: scsi@1:0.0.0 logical name: /dev/cdrom logical name: /dev/cdrw logical name: /dev/dvd logical name: /dev/dvdrw logical name: /dev/scd0 logical name: /dev/sr0 version: DW10 capabilities: removable audio cd-r cd-rw dvd dvd-r dvd-ram configuration: ansiversion=5 status=open *-serial UNCLAIMED description: SMBus product: 82801I (ICH9 Family) SMBus Controller vendor: Intel Corporation physical id: 1f.3 bus info: pci@0000:00:1f.3 version: 03 width: 64 bits clock: 33MHz configuration: latency=0 resources: memory:c0000000-c00000ff ioport:1c00(size=32) *-battery product: PANASONIC vendor: PANASONIC physical id: 1 slot: System Battery Bay capacity: 51000mWh configuration: voltage=11.1V *-remoteaccess UNCLAIMED vendor: Intel physical id: 2 capabilities: outbound *-power UNCLAIMED description: To Be Defined By O.E.M product: To Be Defined By O.E.M vendor: To Be Defined By O.E.M physical id: 3 version: 2.50 serial: To Be Defined By O.E.M capacity: 32768mWh