I have the exact same problem, After updating to kubuntu 13.04 the wire eth0 stops working after few minutes, if i restart the network-manager it works again for minute or so. I never had this problem with 12.10 or 12.4
modinfo atl1c filename: /lib/modules/3.8.0-26-generic/kernel/drivers/net/ethernet/atheros/atl1c/atl1c.ko version: 1.0.1.1-NAPI license: GPL description: Qualcom Atheros 100/1000M Ethernet Network Driver author: Qualcomm Atheros Inc., <nic-de...@qualcomm.com> author: Jie Yang srcversion: FFDFE0E5402689DA77D23B4 alias: pci:v00001969d00001083sv*sd*bc*sc*i* alias: pci:v00001969d00001073sv*sd*bc*sc*i* alias: pci:v00001969d00002062sv*sd*bc*sc*i* alias: pci:v00001969d00002060sv*sd*bc*sc*i* alias: pci:v00001969d00001062sv*sd*bc*sc*i* alias: pci:v00001969d00001063sv*sd*bc*sc*i* depends: intree: Y vermagic: 3.8.0-26-generic SMP mod_unload modversions -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1176370 Title: Ethernet connection not stable To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1176370/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
