@NoAngel 

Hi, nice to see you again.

Are you able to constantly reproduce the current issue?

Would the main Deco BE65 turn red during the disconnection?

I'd like to follow up on your case via email. Please check whether you can receive my email later.

Thank you very much and best regards.

David-TP wrote

  @NoAngel 

Hi, nice to see you again.

Are you able to constantly reproduce the current issue?

Would the main Deco BE65 turn red during the disconnection?

 

I'd like to follow up on your case via email. Please check whether you can receive my email later.

Thank you very much and best regards.

 Hi,  @David-TP !

>Are you able to constantly reproduce the current issue?

Yes, it happens every time I trying to use Synology apps like DS File(happens on login), Synology Photos(happens on every login from new device), maybe other Synology apps(DS Finder, I think it happened on open app...), but I'm not using them since bought Deco very often.

Every time issue happens, Internet connection recovers after random interval. First time it happened I tried to reboot everything except Deco, OFF/ON WiFi, but just wait for several minutes is enough.

>Would the main Deco BE65 turn red during the disconnection?

I thought, no, but tested it again. When Internet dies, main Deco LED stays green, but after while goes red for a short time, then switches back to green, then Internet appears, and dies again, then it goes red and after 2-3 seconds green again. It repeats 3-4 times, and then Internet connection recovers. 

When Internet on Deco is unstable, I tried to connect from another device to ONU, and Internet works perfectly fine when connected to ONU. At the same time there is no Internet on Deco before it recovers by itself.

How to reproduce - I opened a DS File app and it logins to Synology NAS, then it appears to work. I think hmm, looks like cannot reproduce, then opened DS Finder, it also worked. Hmm, wait a bit, and it happens... timeout in browser, all devices in network connected to Deco suddenly give timeout. Then green-red-green on main Deco 3-4 times, and finally Internet connected and works like before.

Internet ---optic fiber cable---  ONU(Huawei EchoLife HG8045Q) ---ethernet--- main Deco(bridge mode)

main Deco ---WiFi--- second Deco

main Deco ---ethernet--- Synology NAS(DS223j)

*my ONU is router, so I can't use Deco in router mode, it suffers from double NAT and very slow :(

**Internet on ONU is very stable, but its WiFi only uses WiFi 5 and a bit slow(~450Mbps DL). I only have half of speed of Deco WiFi if connected directly to ONU WiFi. But cable connection to ONU gives 1Gbps, and when connected to Deco from Pixel 7 via WiFi 6E(6GHz) it gives almost 1 Gbit(~850-940Mbps) - which is much faster than ONU WiFi.

***I used a pair of Huawei AX3 very cheap WiFi 6 routers in bridge mode and some proprietary mesh in similar configuration to Deco and Synology NAS never had a single issue for months, but those cheap routers are slower than Deco...

  @Alexandre. My ONU is near main Deco so just connected NAS to ONU and looks like no more disconnect, works. Speeds from network clients to NAS are similar to when it was connected to Deco. This way it's stable, so I'll keep it. Thanks!