Linux ethernet connection dropping on Linux Mint

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:dmesg

Code: 
[83903.387634] atl1c 0000:01:00.0: irq 43 for MSI/MSI-X

[83903.387739] atl1c 0000:01:00.0: atl1c: eth0 NIC Link is Up<10 Mbps Half Duplex>

[84964.096716] atl1c 0000:01:00.0: atl1c: eth0 NIC Link is Down

[84966.229340] atl1c 0000:01:00.0: atl1c: eth0 NIC Link is Up<10 Mbps Half Duplex>

[84971.807822] atl1c 0000:01:00.0: irq 43 for MSI/MSI-X

[84971.807927] atl1c 0000:01:00.0: atl1c: eth0 NIC Link is Up<10 Mbps Half Duplex>

[84977.338789] atl1c 0000:01:00.0: atl1c: eth0 NIC Link is Down

[84979.479611] atl1c 0000:01:00.0: atl1c: eth0 NIC Link is Up<10 Mbps Half Duplex>

[84984.788520] atl1c 0000:01:00.0: irq 43 for MSI/MSI-X

[84984.788624] atl1c 0000:01:00.0: atl1c: eth0 NIC Link is Up<10 Mbps Half Duplex>

[85328.908064] atl1c 0000:01:00.0: atl1c: eth0 NIC Link is Down

[85331.046509] atl1c 0000:01:00.0: atl1c: eth0 NIC Link is Up<10 Mbps Half Duplex>

[85336.265801] atl1c 0000:01:00.0: irq 43 for MSI/MSI-X

[85336.265905] atl1c 0000:01:00.0: atl1c: eth0 NIC Link is Up<10 Mbps Half Duplex>

[86152.111070] usb 2-1.2.3: reset high speed USB device using ehci_hcd and address 6

[86518.038391] atl1c 0000:01:00.0: atl1c: eth0 NIC Link is Down

[86520.177049] atl1c 0000:01:00.0: atl1c: eth0 NIC Link is Up<10 Mbps Half Duplex>

[86525.495829] atl1c 0000:01:00.0: irq 43 for MSI/MSI-X

[86525.495930] atl1c 0000:01:00.0: atl1c: eth0 NIC Link is Up<10 Mbps Half Duplex>

[87004.174316] atl1c 0000:01:00.0: atl1c: eth0 NIC Link is Down

[87006.313711] atl1c 0000:01:00.0: atl1c: eth0 NIC Link is Up<10 Mbps Half Duplex>

[87011.772416] atl1c 0000:01:00.0: irq 43 for MSI/MSI-X

[87011.772520] atl1c 0000:01:00.0: atl1c: eth0 NIC Link is Up<10 Mbps Half Duplex>

I've given every possible info I could, do let me know if i missed any. I am using a wired connection.

ifconfig

Code: 
eth0	  Link encap:Ethernet  HWaddr 00:26:6c:bd:04:a8  

		  inet addr:10.10.0.19  Bcast:10.10.0.255  Mask:255.255.255.0

		  inet6 addr: fe80::226:6cff:febd:4a8/64 Scope:Link

		  UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1

		  RX packets:142743 errors:57 dropped:10 overruns:0 frame:20

		  TX packets:85881 errors:0 dropped:0 overruns:0 carrier:113

		  collisions:26701 txqueuelen:1000

		  RX bytes:176687869 (176.6 MB)  TX bytes:9076908 (9.0 MB)

		  Interrupt:43

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:203 errors:0 dropped:0 overruns:0 frame:0

		  TX packets:203 errors:0 dropped:0 overruns:0 carrier:0

		  collisions:0 txqueuelen:0

		  RX bytes:17646 (17.6 KB)  TX bytes:17646 (17.6 KB)

cat /etc/network/interfaces

Code: 
auto lo

iface lo inet loopback

netstat -rn

Code: 
Kernel IP routing table

Destination	 Gateway		 Genmask		 Flags   MSS Window  irtt Iface

10.10.0.0	   0.0.0.0		 255.255.255.0   U		 0 0		  0 eth0

169.254.0.0	 0.0.0.0		 255.255.0.0	 U		 0 0		  0 eth0

0.0.0.0		 10.10.0.1	   0.0.0.0		 UG	    0 0		  0 eth0

inxi -N

Code: 
Network:   Card-1 Atheros AR9285 Wireless Network Adapter (PCI-Express) driver ath9k

		   Card-2 Atheros AR8152 v2.0 Fast Ethernet driver atl1c

lspci -v | grep Ethernet -A 1

Code: 
01:00.0 Ethernet controller: Atheros Communications AR8152 v2.0 Fast Ethernet (rev c1)

    Subsystem: Toshiba America Info Systems Device ff1e

thanks in advance
 
EDIT:Someone reporting atl1c driver is broken? https://bbs.archlinux.org/viewtopic.php?id=140550

Atheros/Attansic was a problem device earlier. I've had a onboard card(Atheros L1 or L2 forgot) on My Mobo. it got fried during thunderbolt in kerala monsoon :D thanks to bsnl broadband.
--
Yours uses atl1c module, Hope Your kernel may be recent(3.2/3.3). try "lsmod" and see if any other atheros wired network module makes conflict? remove/blacklist atl1,atl1e and any other lan driver modules or suspected modules. then restart and see whether it works.
OR, You may post the output of "lsmod" here. also post kernel version(command: uname -r)

this is what I saw. it says you disable wifi and try if the link became stable:
https://bbs.archlinux.org/viewtopic.php?id=88466

Another option to debug is, When You see link is down, you open a terminal and as sudo:
Code: 
sudo -s (give passwd) 
tail -f /var/log/syslog
then, open another terminal and run:
Code: 
sudo /sbin/ifup eth0
and observe the messages in the other terminal(where tail -f is running). I cannot understand your network whether it is dhcp or static one. if static ip, then put it in /etc/network/interfaces file.

I have a wireless router's lan port connected to My PC land card assigning dhcp address to the pc. so, My /etc/network/interfaces looks like:
Code: 
auto lo
iface lo inet loopback
auto eth0
iface eth0 inet dhcp
You can put static IP also.

Then, post the output of tail -f /var/log/syslog here.
 
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