DSM 6.0 network drops? SMB particularly bad
I recently upgraded from a rock solid DSM 5 to DSM 6 for some much needed features. The upgrade went pretty smoothly, but the network and file services on DSM 6 update 10 seem to periodically drop. A 1GB file transfer over SMB or NFS will be chugging along at 100MB/s and then suddenly drop to zero. It sometimes resumes maybe 30 seconds later.
Drops aren't predictable that I can see. Sometimes I won't see one for quite some time, and sometimes it happens repeatedly in the span of 10 mins. I d
It has to be network related. I can't even ping the NAS when the SMB copy halts. Resource monitor and ssh connections also temporarily fail. ssh reconnects when IP comes back up, but the web interface logs me out, so I can't view the resource monitor throughout.
ifconfig eth0 reports 0 errors. SMB transfer speed is brutally slow when it reconnects (max 21MB/s vs. typical 100+MB/s), even after I restart smbd, but seems to be a little more reliable. If I switch from SMB 2 with jumbo frames to