Discussion de forum
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 Fibre Internet and never had a problem. I was using my own routers and everything was working well.
When the technician installed my Helix gateway I asked him to set it up in bridge mode since I wanted to keep using my routers. After the installation everything seemed to be fine for a couple of days; then the problems started. The internet would go down so I'd check the gateway to find that the light was red. I would unplug it, plug it back in and the internet connection would come back. This lasted another few days and it would go down again. Some days I would have to reset it 4-5 times.
I called customer support and they told me the problem was on my end since the gateway was in bridge mode. I explained that my setup had not changed, save for the new gateway, and I had no issues with the previous modem. They explained that it was different since Helix combines the modem and the router and offered no real help.
After several months of dealing with this very annoying inconvenience I decided to reset the Helix gateway to it's factory settings and only use that for my home network. After setting up everything the issue started happening again. This time I knew that it wasn't because of my routers so I started eliminating other devices. I determined that the problem was caused by my Synology NAS. This is actually a "faux" Synology NAS, meaning that I'm using open source software called Xpenology to run the Synology DSM software on a regular computer.
So, whenever I plug my NAS into the network it crashes the Helix gateway. Sometimes it's almost immediate whereas some other times it can stay up for an hour or so. I've played around with different settings on the NAS and turned off most of the services but that didn't resolve the issue. What I tried today and what seems to be working so far, is leaving the gateway field blank in the NAS network settings so that I can still access it locally but it can't reach out to the internet.
I apologize for the very long post and if you've made it this far I want to thank you for reading this.
Does anyone have any suggestions?
PS. I hooked up my NAS to my dad's Helix gateway and it ran fine for about 10-15 minutes. I realize now that I should have left it connected for at least a few hours.
2 Réponses
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.
