Public bug reported:
Using a wired Ethernet card for connectivity.
When booting the computer, Network Manager detects the card and I get an
IP address, and the Internet works very briefly.
After a couple of second's use of the Internet connection, the
connection apparently "times out" or at least expires; during normal
browsing, I'm typically able to read the first page I load but not the
second. When reading mail, it usually manages to download only about
half my mail before the connection dies.
I can then right click Network Manager, uncheck "Enable Networking",
wait a sec, check "Enable Networking" once again, which makes it connect
and get the computer an IP address, etc ... whereuopn I once again have
a few second's worth of Internet connection.
So what did I do? Nothing, as far as I know; the system comes from a
clean Gutsy install dating from November, recently (after release)
upgraded to Hardy by the Upgrade Manager. The day it went wrong I
installed some KVM extensions, found out KVM can't run on my CPU as it
doesn't support virtualization optimization, and ended up simulating a
Debian-derived system in Qemu instead. AFAIK that's the only things I've
done the last days which might affect the kernel and its drivers.
Nothing appears to be wrong with the hardware - if I boot into windows,
wired networking works just fine.
Here is some sample output from ifconfig:
"eth0 Link encap:Ethernet HWaddr 00:16:17:53:10:5f
inet addr:84.238.94.107 Bcast:84.238.94.255 Mask:255.255.255.0
inet6 addr: fe80::216:17ff:fe53:105f/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:2304 errors:0 dropped:2 overruns:0 frame:2
TX packets:1672 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:1275408 (1.2 MB) TX bytes:198555 (193.9 KB)
Interrupt:17 Base address:0xe000
lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
inet6 addr: ::1/128 Scope:Host
UP LOOPBACK RUNNING MTU:16436 Metric:1
RX packets:4143 errors:0 dropped:0 overruns:0 frame:0
TX packets:4143 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:213215 (208.2 KB) TX bytes:213215 (208.2 KB)"
Here is the Ethernet card's entry from lspci:
04:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168B PCI
Express Gigabit Ethernet controller (rev 01)
Please note that the fix proposed in bug #136836, namely to enter the lines:
# rmmod forcedeth
# modprobe forcedeth msi=0 msix=0
# /etc/init.d/networking restart
does NOT solve the problem, thus I suppose the problem is not the same.
** Affects: ubuntu
Importance: Undecided
Status: New
--
Internet connection times out/not working
https://bugs.launchpad.net/bugs/226026
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