I checked BIOS and I have the newest version (17HX). It also happens with saucy. Here is a log from ping:
$ ping 8.8.8.8 PING 8.8.8.8 (8.8.8.8) 56(84) bytes of data. 64 bytes from 8.8.8.8: icmp_seq=1 ttl=47 time=35.9 ms 64 bytes from 8.8.8.8: icmp_seq=2 ttl=47 time=33.1 ms ping: sendmsg: No buffer space available ping: sendmsg: No buffer space available ping: sendmsg: No buffer space available ping: sendmsg: No buffer space available ping: sendmsg: No buffer space available ping: sendmsg: No buffer space available ping: sendmsg: No buffer space available (message above was repeated quite a many times) >From 10.0.1.125 icmp_seq=57 Destination Host Unreachable >From 10.0.1.125 icmp_seq=58 Destination Host Unreachable >From 10.0.1.125 icmp_seq=59 Destination Host Unreachable >From 10.0.1.125 icmp_seq=60 Destination Host Unreachable >From 10.0.1.125 icmp_seq=61 Destination Host Unreachable >From 10.0.1.125 icmp_seq=62 Destination Host Unreachable >From 10.0.1.125 icmp_seq=63 Destination Host Unreachable >From 10.0.1.125 icmp_seq=64 Destination Host Unreachable >From 10.0.1.125 icmp_seq=65 Destination Host Unreachable >From 10.0.1.125 icmp_seq=66 Destination Host Unreachable >From 10.0.1.125 icmp_seq=67 Destination Host Unreachable ping: sendmsg: Network is unreachable ping: sendmsg: Network is unreachable ping: sendmsg: Network is unreachable ping: sendmsg: Network is unreachable ping: sendmsg: Network is unreachable ping: sendmsg: Network is unreachable ping: sendmsg: Network is unreachable ping: sendmsg: Network is unreachable ping: sendmsg: Network is unreachable ping: sendmsg: Network is unreachable ping: sendmsg: Network is unreachable ping: sendmsg: Network is unreachable 64 bytes from 8.8.8.8: icmp_seq=81 ttl=47 time=35.8 ms 64 bytes from 8.8.8.8: icmp_seq=82 ttl=47 time=34.7 ms 64 bytes from 8.8.8.8: icmp_seq=83 ttl=47 time=32.1 ms 64 bytes from 8.8.8.8: icmp_seq=84 ttl=47 time=31.6 ms 64 bytes from 8.8.8.8: icmp_seq=85 ttl=47 time=28.6 ms ^C --- 8.8.8.8 ping statistics --- 85 packets transmitted, 7 received, +11 errors, 91% packet loss, time 124409ms rtt min/avg/max/mdev = 28.689/33.180/35.996/2.423 ms -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1153252 Title: 14e4:4727 [Samsung NP-RF511-S03SE] wifi stops working when laptop lid is closed Status in “linux” package in Ubuntu: Incomplete Bug description: In Ubuntu 12.10, when I close the laptop lid, the wlan connection is closed. Wired (ethernet) connections keep working normally. This prevents using only external monitor in places where wired connections are not accessible and forces the user to keep the laptop display on even if it is not needed. Changing the power manager settings to "Do nothing" does not affect this. It also does not matter if the laptop is plugged in or not. Looking at this discussion, it seems this problem has existed at least from Ubuntu 8.04, and Kubuntu is affected as well: http://ubuntuforums.org/showthread.php?t=968785 Apparently, at some point, disabling the screen saver would fix this issue. However, there is no such setting on Ubuntu 12.10. --- ApportVersion: 2.6.1-0ubuntu10 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: unksi 2255 F.... pulseaudio /dev/snd/pcmC0D0p: unksi 2255 F...m pulseaudio CRDA: Error: command ['iw', 'reg', 'get'] failed with exit code 1: nl80211 not found. DistroRelease: Ubuntu 12.10 InstallationDate: Installed on 2013-03-01 (16 days ago) InstallationMedia: Ubuntu 12.10 "Quantal Quetzal" - Release amd64 (20121017.5) MachineType: SAMSUNG ELECTRONICS CO., LTD. RF511/RF411/RF711 MarkForUpload: True NonfreeKernelModules: wl Package: linux (not installed) ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.5.0-25-generic root=UUID=a7bbcbf4-2e43-442d-a6e9-c22e2a1016c0 ro quiet splash vt.handoff=7 ProcVersionSignature: Ubuntu 3.5.0-25.39-generic 3.5.7.4 RelatedPackageVersions: linux-restricted-modules-3.5.0-25-generic N/A linux-backports-modules-3.5.0-25-generic N/A linux-firmware 1.95 Tags: quantal running-unity Uname: Linux 3.5.0-25-generic x86_64 UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo vboxusers dmi.bios.date: 11/27/2012 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: 17HX.M045.20121127.SSH dmi.board.asset.tag: To be filled by O.E.M. dmi.board.name: RF511/RF411/RF711 dmi.board.vendor: SAMSUNG ELECTRONICS CO., LTD. dmi.board.version: 17HX dmi.chassis.asset.tag: No Asset Tag dmi.chassis.type: 9 dmi.chassis.vendor: SAMSUNG ELECTRONICS CO., LTD. dmi.chassis.version: N/A dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr17HX.M045.20121127.SSH:bd11/27/2012:svnSAMSUNGELECTRONICSCO.,LTD.:pnRF511/RF411/RF711:pvr17HX:rvnSAMSUNGELECTRONICSCO.,LTD.:rnRF511/RF411/RF711:rvr17HX:cvnSAMSUNGELECTRONICSCO.,LTD.:ct9:cvrN/A: dmi.product.name: RF511/RF411/RF711 dmi.product.version: 17HX dmi.sys.vendor: SAMSUNG ELECTRONICS CO., LTD. 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