Hi. On Sun, Aug 26, 2018 at 07:42:31AM -0300, VinÃcius Couto wrote: > Hi, > > I use Debian sid and some weeks ago, a upgrade in some package caused a > strange thing. > > I use my computer, when my wired connection down. Sometimes only the IPv4, > sometimes all the connections.
Yet another NetworkManager fault, most likely. The thing lives to its reputation once more. > The symbol of the wired connection says that the connection is working. > When i disable to use a wireless connection in the same network, it works. Of all the ways to test network connection you just used the least informative one. Please share the output of "ip a l" and "ip ro l" next time this happens. > When i use dmesg | grep r8169 > r8169 Gigabit Ethernet driver 2.3LK-NAPI loaded > r8169 0000:02:00.0 eth0: RTL8168evl/8111evl at 0x (ptrval), ..., XID > ... IRQ .. > r8169 0000:02:00.0 eth0: jumbo features [frames: 9200 bytes, tx > checksumming: ko] Pretty normal. > r8169 0000:02:00.0 enp2s0: renamed from eth0 That's systemd thing. > r8169 0000:02:00.0: firmware: direct-loading firmware rtl_nic/rtl8168e-3.fw And here you've used non-free blob, which is most likely completely unnecessary. But it's unlikely that any of these are somehow related to your problem. > dmesg | grep enp2s0 > TCP: enp2s0: Driver has suspect GRO implementation, TCP performance may be > compromised. And that says that your NIC has problematic Generic Receive Offload implementation, yet kernel enabled it. Try "ethtool -K enp2s0 gro off" if it bothers you, but it'll unlikely will have any visible effect. > What is happening to my computer? Network Manager. See above. Reco