Realtek r8169 always flapping

Mon Oct 26 16:57:48 UTC 2015

Hi everyone!
I noticed in dmesg that my ethernet link is flapping all the time
[Oct25 18:55] r8169 0000:02:00.0 enp2s0: link down
[  +3.131667] r8169 0000:02:00.0 enp2s0: link up
[Oct25 18:56] r8169 0000:02:00.0 enp2s0: link down
[  +2.763688] r8169 0000:02:00.0 enp2s0: link up
[Oct25 18:59] r8169 0000:02:00.0 enp2s0: link down
[  +3.060069] r8169 0000:02:00.0 enp2s0: link up
[Oct25 19:00] r8169 0000:02:00.0 enp2s0: link down
[  +3.559610] r8169 0000:02:00.0 enp2s0: link up
I changed the cabling, tried to plug into another switch no difference.
Any ideas will be very appreciated as this flapping brings a lot of
inconvenience.
My device in lspci:
02:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd.
RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 10)
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