link up, link down, random network disconnection

InvisibleRasta · Apprentice Joined: 30 Mar 2011 Posts: 188

hello guys i have been having this issue the past week. my connection keeps disconnecting and i have to restart network and net.eth0 each time to get the connection back. ill post here some info that might be helpful

paulbiz · Posted: Tue Jul 05, 2011 10:41 pm Post subject:

Hi, I use this same driver and exactly the same ethernet device ID, and I don't have any issues. I assume you already tried the basics: a different cable, make sure there's not an IP address conflict in your network, etc.

I have read many reports with r8169 driver about similar behavior, I seem to remember some maybe had to do with firmware loading (do you have sys-kernel/linux-firmware installed? I do), and others had a workaround of disabling link speed autonegotiation because of incompatibilites with certain network devices.

jenkler · Posted: Wed Jul 06, 2011 3:44 pm Post subject: Hi!

It seams i got the same issue here, running a webserver and sshd sometimes i cant connect but if i start

ping -i 250 www.google.com on the server it works.

Must be some type of sleep mode or acpi bug. Is there anyway to fix this beside ping workaound?

Ant P. · Watchman Joined: 18 Apr 2009 Posts: 6920

In my experience Realtek hardware tends to be flakier than a bowl of cereal. I saw one of a pair of identical rtl* cards start doing this once... the only fix may be to just replace it with a different brand entirely.

j_c_p · Posted: Wed Jul 06, 2011 5:21 pm Post subject:

jenkler · Posted: Thu Jul 07, 2011 7:06 am Post subject:

donmartio · Apprentice Joined: 11 Dec 2004 Posts: 258

I have the same issue here.

We found this:

http://ubuntuforums.org/showthread.php?t=1022411

and test it later.
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donmartio · Apprentice Joined: 11 Dec 2004 Posts: 258

Ok, this works perfectly here.

Where does the kernel version come from in the gentoo sources. may there is way to get those sources there so we don't have to do
this ervery kernel update.
_________________
Always code as if the person who ends up maintaining your code will be a violent psychopath who knows where you live.

BaYGoN · Posted: Wed Aug 31, 2011 9:21 pm Post subject:

I have the same NIC as you guys, as reported by lspci, and having the same problems (using the r8169 driver) about unstable wired networking and the too-many link up messages in dmesg.

Followed the thread in the Ubuntu Forums, and everything works fine except that on each reboot, i have to manually load the module again using insmod.
I haven't done the last step: "echo "r8168" >> /etc/modules" simply because my gentoo system does not have that file.

I also noticed the make install part failed for me, and it was trying to copy the r8168.o module to a unexisting directory. Wasn't the .ko module that should be copied? Anyway, i've copied the .ko manually to my /lib/modules/<kernel version>, but modprobe doesn't find it.

What am i missing here?

PS: maybe an ebuild for the r8168 driver could be added to the tree. My wifi card has an ebuild for the driver (broadcom-sta), and everything works with a simple emerge.

Any help will be much appreciated.
Thanks.
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PoliJan · n00b Joined: 11 Nov 2014 Posts: 5

I have this same problem. My ethernet disconnects frequently. Here is the output from ifconfig
eth1 Link encap:Ethernet HWaddr e0:cb:4e:d8:39:f5
inet addr:130.192.1XX.1XX Bcast:130.192.1XX.255 Mask:255.255.255.0
inet6 addr: fe80::e2cb:4eff:fed8:39f5/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:2015850 errors:0 dropped:0 overruns:0 frame:0
TX packets:719308 errors:0 dropped:0 overruns:0 carrier:3
collisions:0 txqueuelen:1000
RX bytes:1347373744 (1.2 GiB) TX bytes:101835073 (97.1 MiB)
Interrupt:27

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:6374 errors:0 dropped:0 overruns:0 frame:0
TX packets:6374 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:466881 (455.9 KiB) TX bytes:466881 (455.9 KiB)

My card information is the following
sudo lspci | grep -i eth
02:00.0 Ethernet controller: Atheros Communications Inc. AR8121/AR8113/AR8114 Gigabit or Fast Ethernet (rev b0)

I am behind a proxy, but the same cable,IP, every thing working under windows.
Any help....!

PoliJan · n00b Joined: 11 Nov 2014 Posts: 5

I have this same problem. My ethernet disconnects frequently. Here is the output from ifconfig
eth1 Link encap:Ethernet HWaddr e0:cb:4e:d8:39:f5
inet addr:130.192.20.140 Bcast:130.192.20.255 Mask:255.255.255.0
inet6 addr: fe80::e2cb:4eff:fed8:39f5/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:2015850 errors:0 dropped:0 overruns:0 frame:0
TX packets:719308 errors:0 dropped:0 overruns:0 carrier:3
collisions:0 txqueuelen:1000
RX bytes:1347373744 (1.2 GiB) TX bytes:101835073 (97.1 MiB)
Interrupt:27

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:6374 errors:0 dropped:0 overruns:0 frame:0
TX packets:6374 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:466881 (455.9 KiB) TX bytes:466881 (455.9 KiB)

My card information is the following
sudo lspci | grep -i eth
02:00.0 Ethernet controller: Atheros Communications Inc. AR8121/AR8113/AR8114 Gigabit or Fast Ethernet (rev b0)

I am behind a proxy, but the same cable,IP, every thing working under windows.
Any help....! (also it took me quite a while in sending the query...it disconnects)