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Unstable network on DSM 6.2.2-24922



I'll repost the question here, since I didn't get any info on the post installation subforum.


Anyone else experienced this?


I've got an HP Microserver gen10, an HP NC360T NIC and DSM 6.2.2-24922. Ever since the upgrade from 6.1 to 6.2 the system will drop of off the network about once a week. Sometimes when adding large torrents to the download station (but maybe that's just a coincidence).


Apparently it happens because the network card stops/resets and the dhcp-client can't (or won't) start again.


Relevant portion from /var/log/messages:

2019-05-15T13:23:52+02:00 diskstation [228138.340179] init: dhcp-client (eth0) main process (8937) killed by TERM signal
2019-05-15T13:23:52+02:00 diskstation dhcp-client: stopped on eth0
2019-05-15T13:23:52+02:00 diskstation dhcp-client: started on eth0
2019-05-15T13:23:52+02:00 diskstation synonetd: net_default_gateway_set.c:34 failed to set default gateway

Found in /var/log/kern.log:

2019-05-15T17:47:58+02:00 diskstation kernel: [15716.768357] e1000e 0000:02:00.0 eth0: Reset adapter unexpectedly

After some Googling (especially this discussion), the solution would seem to be an upgrade of the e1000e drivers and/or disabling ASPM (PCIe Active State Power Management). I've added "pcie_aspm=off" to common_args_3615 in my grub.cfg but it didn't help. I've since downgraded to DSM 6.1 but the problem still bugs me.

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