Strangest issue with my ethernet connection

[florienb]

I am having the most annoying and strangest issue of all. My ethernet connection is intermittently dropping without any kind of notification: the internet just goes down without errors or anything.

The issue isn't originating from my LAN/WAN. WiFI and other wired devices connected via the same router are working just fine. My machine - 18.2 Sonya dual boot + win10, is the only one having this issue. I have to either restart the machine or bring down my primary eth interface with: sudo ifconfig enp2s0 downp and then ifconfig enp2s0 up

my eth configuration is:

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~ $ ifconfig
enp2s0    Link encap:Ethernet  HWaddr 20:cf:30:ae:58:47  
          inet addr:192.168.100.105  Bcast:192.168.100.255  Mask:255.255.255.0
          inet6 addr: fe80::b07d:825:c034:3d0a/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:582027 errors:0 dropped:0 overruns:0 frame:0
          TX packets:308665 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:695718503 (695.7 MB)  TX bytes:45127010 (45.1 MB)

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:65536  Metric:1
          RX packets:6926 errors:0 dropped:0 overruns:0 frame:0
          TX packets:6926 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1 
          RX bytes:500616 (500.6 KB)  TX bytes:500616 (500.6 KB)

tun0      Link encap:UNSPEC  HWaddr 00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00  
          inet addr:10.100.0.126  P-t-P:10.100.0.125  Mask:255.255.255.255
          inet6 addr: fe80::4d9b:187f:bad4:8105/64 Scope:Link
          UP POINTOPOINT RUNNING NOARP MULTICAST  MTU:1500  Metric:1
          RX packets:979 errors:0 dropped:0 overruns:0 frame:0
          TX packets:1195 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:100 
          RX bytes:517659 (517.6 KB)  TX bytes:409469 (409.4 KB)

The system is up to date too. Thank you for your help everyone.

[Lanser]

florienb. As a test, try downgrading network manager and see if the connection becomes stable.

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sudo apt-get install network-manager=1.2.2-0ubuntu0.16.04.4

Lanser

[trytip]

are you saying your win10 has the same issue? what is output

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iwconfig

create a new user with admin rights and try that out for a few hours to see if it's hardware or your mint profile (you can delete the user later)

[jimbobs]

are you saying your win10 has the same issue? ...

My first question as well! If so, I would look towards BIOS or hardware issue/s.