Network drops eth0: Reset adapter unexpectedly

[stneville]

Hi All

 

I have recently installed unraid and everything is good apart from I keep on getting random network drops.  I get the error message "Tower kernel: e1000e 0000:00:1f.6 eth0: Reset adapter unexpectedly" and then I lose network connectivity for a minute while it sorts it self out.

 

Any help would be appreciated.

 

Thanks

[Frank1940]

The next time after this events occurs, go to   Tools   >>>   Diagnostics    and upload the resulting file.

[Zonediver]

More Infos please... which adapter - Intel maybe? Onboard, PCI, PCIe. If its a PCIe, try a different slot and so on...

[stneville]

I have attached the diagnostics file.  Its an onboard intel network interface.

 

I have done a bit of reading and I have run the command ethtool -K eth0 tx off rx off and it hasn't happened since.

tower-diagnostics-20180720-1301.zip

[Andiroo2]

Happening to me as well, built-in NIC drops once in a while (few times a day).  Starting to research now.  

tower-diagnostics-20200521-1955.zip

[Andiroo2]

I was able to resolve this as well by disabling the same features on the NIC via the terminal:

ethtool -K eth0 gso off gro off tso off

...and by adding this to my Syslinux config:

pcie_aspm=off

I followed this thread: https://serverfault.com/questions/616485/e1000e-reset-adapter-unexpectedly-detected-hardware-unit-hang.  Since disabling these, I haven't had the issue reoccur.  I believe they were reset (back to enabled) when I installed an Unraid update, however, so I may need to add them to a reboot cron job to make it persist.  

 

I don't know which change was actually the one that fixed it, but I'm too lazy to re-enable one at a time to test.

Edited June 18, 2020 by Andiroo2