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Synology NAS crashes my Helix gateway
I'm hoping that someone can help me find a solution to my problem. A little context: I've been with Vidéotron for over 20 years, prior to moving to their Helix service I had their legacy Hybrid Fibr...
Hi , first i have a question, your NAS is hook up on the back of the Helix, is it in a DMZ config ? (if so , why) or on the back of your Router ?, (if so, Model of the router). Some tech document on the WEB talk about XPenology like :
Your Xpenology NAS is well known to sometimes do one or more of the following:
Send aggressive ARP announcements
Expose multiple virtual NIC MAC addresses
Mis-handle IPv6 RA
Respond to packets it shouldn’t
Advertise itself as a gateway under certain configs
Generate malformed multicast / mDNS packets
This is why, 1 or 2 solution could be tried :
Solution 1 :
Test 1 – Disable IPv6 on NAS (important)
On Xpenology:
Network → IPv6 → Disable
Reboot NAS
Plug it back in
IPv6 RA bugs are a very common Helix killer
And try it
Take out gateway on the NAS
Test 2 – Static IP, no gateway (your current workaround)
This works because:
NAS stops participating in routing logic
Stops sending certain gateway-related ARP
Last if all fail, i will need a trace from Wireshark to analyse it
Enjoy , have fun
Hi! Thank you very much for taking the time to reply to my post.
I had the NAS connected to my old Airport Extreme routers with the gateway in bridge mode (the same config I had with the previous modem and which worked for several years without any hiccups). I figured I would take the Airport routers out of the equation so I reset the gateway to it's factory settings and connected the NAS directly to it; that's when it started crashing the gateway within minutes. Now I have the gateway set in bridge mode and I'm using TP-Link Deco mesh routers.
In response to your first solution, IPv6 has always been disabled on my NAS.
I turned off almost all the packages to see if one of them was causing the problem. In doing that I was able to isolate the issue to Cloud Sync, more specifically when it tries to sync my Dropbox account to the NAS. It can successfully sync OneDrive without crashing the gateway but as soon as I enable the Dropbox syncing the gateway goes down. My next solution was to upgrade Xpenology to a newer version.
