So I have started getting problems with my Deco M5 setup lately.
The setup has worked fine for a long time, and no changes have been made to the network, so I suspect it has something to do with the latest update.
The internet connection is very unstable, and the ping is mostly between 500-1000ms. Sporadiclly it will drop down to the usual 25ms.
ISP Router > LRT224 Dual WAN router > Deco
If I connect to the LAN-port on either the ISP router, LRT224 or the Deco I get the same (bad) experience so it has nothing to do with the Wifi.
The strangest part is that when I disconnect the deco from the network, and connect to a LAN-port on either the router or LRT224 the connection is fine.
Connecting the Deco directly to the ISP router has not helped, including when the Deco is running as an access point. I have also tried a hard-reset on all the devices, and even changed the main Deco unit. I have a 4G modem that sometimes is connected to the LRT224, and that seems to be more stable.
So, based on my very limited knowledge, it seems to be an issue in the communication between the ISP router and the Deco. I have tried messing around with all the settings I can think of (fixed DHCP, IPv4/6 etc.) on both ends with no luck. I was planning on adding a couple og M9 units to the network, but now I'm afraid I have to change to another brand since the only option left that I can think of is that it's an firmware issue. Hopefully somebody here can help.